Smart Kit catalogue (En)

Smart Electronics is synonymous to High Quality electronics since

1980.The company is well known to generations of professional,

educational, and hobby enthusiasts all around the world.

There are thousands of people who learned electronics using our kits

and today are electronic engineers and well known professionals.

From Island to S.Africa and from USA to Hong Kong , Smart Kits are

exported in many countries and they are famous for their quality and

well known as best value for money products.

During last year we worked very hard to improve our range.We

created new kits -some of them using of microcontrollers- and we

redesigned some others.The majority of the kits now have the CE

approval and its a matter of time to get the approval for all the rest.

We also paid the proper attention to offer you the right information. In our site at Internet

www.smartkit.gr you will find all the info about Smart Kits in English, German, Dutch, Danish,

Swedish, Italian, Spanish, Portuguese, French, Hungarian and Greek.The most of the kits have

already multilingual instructions in 8 languages.This catalogue is also among our efforts to provide

you the info that you require to make the right selection.Try a Smart Kit!

WHAT IS A SMART KIT?

It is an easy way to build an electronic device such as:A.F. amplifiers, F.M. transmitters, alarms,

power supplies, instruments, light modulators bugging devices etc.Apart from that, there is a great

fun in building electronic circuits, you can also feel very proud for your creativity and of course

you have a chance to learn a lot!

Furthermore you can save a lot of money because kits cost less than assembled devices.

A Smart Kit pack contains everything that you need to build the circuit.All the components,

printed circuit boards and instructions -usually in your language- are included in the package.All

you need is, just a soldering iron!

Smart Electronics Ltd,

39 Ag. Konstantinou Str, Athens 104 37, Greece

Tel: 5230 000 - 5231 555 Fax: 5245474

e-mail: smarty@hol.gr

web site: www.smartkit.gr

Internet site: http://www.smartkit.gr 1

KIT DESCRIPTION PAGE

1001 FM TRANSMITTER 0,2 WATT 4

1002 VU-METER WITH LEDs ñ ñ 35

1003 ELECTRONIC SIREN 5 WATT ñ ñ 40

1004 LIGHT SWITCH ñ 26

1005 TOUCH SWITCH ñ ñ 26

1006 MUSIC TO LIGHT EFFECT 800 WATT ñ 29

1007 STABILIZED POWER SUPPLY 3-30V/2,5A ñ ñ 44

1008 AF FUNCTION GENERATOR 36

1009 FM TRANSMITTER 1 WATT 4

1010 5-INPUTS STEREO MIXER 16

1011 MOTORBIKE ALARM ñ ñ 12

1012 SPRING REVERBERATION 23

1013 VHF-FM-TV RECEIVER 7

1014 3 CHANNEL WIRELESS LIGHT MODULATOR 29

1015 ELECTRONIC MOSQUITO REPELLER ñ ñ 47

1016 LOUDSPEAKER PROTECTION UNIT 23

1017 LINEAR CB 30 WATT 6

1018 GUITAR TREMOLO 22

1019 CAR ALARM SYSTEM ñ ñ 12

1020 0-5 MIN TIME SWITCH ñ ñ 9

1021 FM TRANSMITTER 15 WATT (ASSEMBLED) 4

1022 METAL DETECTOR ñ ñ 47

1023 DYNAMIC HEAD PREAMPLIFIER-RIAA ñ ñ 16

1024 MICROPHONE PREAMPLIFIER ñ ñ 16

1025 HI-FI AMPLIFIER 7 WATT ñ ñ 19

1026 RUNNING LIGHTS ñ 29

1027 NI-CAD BATTERY CHARGER ñ ñ 43

1028 FM TRANSMITTER 4 WATT 4

1029 4-SOUNDs ELECTRONIC SIREN ñ ñ 40

1030 LIGHT DIMMER 50

1031 FM TRANSMITTER 25 WATT (ASSEMBLED) 5

1032 STEREO TONE CONTROLS 23

1033 HI-FI AMPLIFIER 60 WATT ñ ñ 19

1034 CAR BATTERY CHECKER ñ ñ 12

1035 SPACE SOUND EFFECTS ñ ñ 25

1036 TRANSISTOR TESTER ñ ñ 36

1037 DISCO STROBO LIGHT 29

1038 AM-FM AERIAL AMPLIFIER ñ ñ 7

1039 STEREO VU-METER ñ ñ 35

1040 HI-FI AMPLIFIER 10 WATT ñ ñ 19

1041 HI-FI AMPLIFIER 25 WATT ñ ñ 20

1042 AF GENERATOR 250Hz-16KHz ñ ñ 36

1043 LOUDNESS STEREO UNIT ñ ñ 23

1044 GRAPHIC EQUALIZER 24

1045 SOUND EFFECTS GENERATOR ñ ñ 25

1046 BOOSTER AMPLIFIER 2X25 WATT ñ ñ 20

1047 SOUND SWITCH ñ ñ 26

SMART KIT CATALOGUE

KIT DESCRIPTION PAGE

1048 ELECTRONIC THERMOSTAT ñ ñ 26

1049 ULTRASONIC RADAR ñ ñ 40

1050 3-INPUTs HI-FI PREAMPLIFIER 16

1051 TOUCH DIMMER 50

1052 3-INPUTs MONO MIXER 17

1053 ELECTRONIC METRONOME ñ 22

1054 4-INPUTs INSTRUMENT MIXER 17

1055 FM RECEIVER ñ ñ 7

1056 STABILIZED POWER SUPPLY 8-20V/8A 44

1057 CASSETTE HEAD PREAMPLIFIER 17

1058 ELECTRONIC CAR IGNITION 12

1059 TELEPHONE AMPLIFIER ñ ñ 32

1060 POWER SUPPLY ±40V/8A ñ ñ 44

1061 STABILIZED POWER SUPPLY 15V 0,5A ñ ñ 44

1062 TTLs STABILIZED POWER SUPPLY ñ 45

1063 POWER SUPPLY 15V 2A ñ 45

1064 STABILIZED POWER SUPPLY ±12V 0,5A ñ 45

1065 INVERTER 12 VDC-220 VAC/50Hz ñ ñ 43

1066 MOTORBIKE INTERCOM ñ ñ 13

1067 STEREO VU-METER WITH LEDS 37

1068 POWER SUPPLY 18V/0,5A 45

1069 12VDC FLUORESCENCE 43

1070 HI-FI PREAMPLIFIER 17

1071 4-INPUTs SELECTOR FOR 1070 ñ 18

1072 AUTOMATIC MAINS LIGHT SWITCH 27

1073 VOX FOR AUTOMATIC RECORDINCS ñ ñ 27

1074 DRILL SPEED CONTROLLER 51

1075 ELECTRONIC DICE WITH LEDs ñ 47

1076 ELECTRONIC THERMOSTAT ñ 27

1077 HI-FI AMPLIFIER 100 WATT ñ ñ 20

1078 PROTECTION FROM MALICIOUS CALLS 32

1079 FM-STEREO ENCODER 6

1080 LIQUID LEVEL SENSOR/RAIN ALARM ñ 27

1081 FLUID LEVEL DETECTOR ñ 28

1082 CAR VOLTMETER WITH LEDs ñ ñ 13

1083 VIDEO SIGNAL AMPLIFIER ñ ñ 8

1084 T.V. LINE AMPLIFIER 8

1085 DC CONVERTER 12 TO 6/7.5/9V ñ ñ 43

1086 CAR’S MUSIC TO LIGHT MODULATOR ñ ñ 13

1087 THYRISTOR-TRIAC TESTER ñ 36

1088 “KITT” SCANNER ñ 13

1089 LED FLASHER - 555 TESTER ñ ñ 47

1090 STRESS METER 48

1091 GUITAR PREAM.WITH TONE CONTROLS ñ 22

1092 IN-CAR IONISER 14

1093 WINDSHIELD WIPER CONTROLLER ñ ñ 14

1094 HOME/SHOP ALARM SYSTEM ñ ñ 40

2 Internet site: http://www.smartkit.gr

IN NUMERICAL ORDER

ñ Kits with CE approval

ñ Kits with multilingual

KIT DESCRIPTION PAGE

1095 LEAD ACID BATTERY CHARGER ñ ñ 14

1096 STABILIZED POWER SUPPLY2-30VDC/5A ñ 46

1097 CAR INTERFERENCE SUPPRESSOR

(ASSEMBLED) ñ 14

1098 DIGITAL THERMOMETER WITH LCD ñ ñ 37

1099 DIGITAL VOLTMETER WITH LCD ñ 37

1100 INTEGRATED STEREO AMPLIFIER 2X18 W 20

1101 DOLLAR TESTER 48

1102 STEREO VU-METER WITH 14 LEDs 35

1103 LED POWER METER ñ ñ 37

1104 SWEET LITTLE HEART ñ 30

1105 HUMIDITY METER WITH LCD 37

1107 ELECTRONIC 1X2 ñ 48

1109 HI-FI AMPLIFIER 40 WATT 21

1110 OSCILLOSCOPE COMPONENT TESTER 38

1111 LOGIC PROBE ñ 38

1112 LOUDSPEAKER PROTECTION

WITH RELAY ñ ñ 24

1113 HI-FI AMPLIFIER 2X18 WATT 21

1114 ELECTRONIC LOCK ñ ñ 41

1115 COURTESY LIGHT DELAY ñ ñ 15

1116 SIGNAL INJECTOR AND SIGNAL TRACER 38

1117 T.V. PATTERN GENERATOR 8

1118 TIME SWITCH TRIAC 0-10 MIN 9

1119 TELEPHONE LINE RECORDING ñ 32

1120 R.P.M. INDICATOR WITH LED’s 15

1121 GIANT DIGITAL CLOCK 9

1122 TELEPHONE CALL RELAY ñ 32

1123 MORSE CODE GENERATOR ñ ñ 48

1124 ELECTRONIC BELL ñ ñ 49

1125 PULSE TELEPHONE LOCK 33

1126 3 MICROPHONE INPUTS PREAMPLIFIER ñ 18

1127 TONE CONTROLS FOR 1126 18

1128 POWER FLASHER 12 VDC ñ ñ 40

1129 NEGATIVE ION GENERATOR 49

1130 TELEPHONE “BUG” DETECTOR 33

1131 ROBOT VOICE 25

1132 SUPERLIGHT- 3 CH. LIGHT EFFECT. 30

1133 STEREO SOUND TO LIGHT MODULATOR 30

1134 AUTOMATIC DIMMER 51

1135 TELEPHONE ‘’ BUG ‘’ TRANSMITTER 5

1137 DIGITAL VOLTMETER WITH LED DISPLAYS 38

1138 STABILIZED POWER SUPPLY 0-30VDC/3A 48

1139 MINI DRILL SPEED CONTROLLER 51

1140 5 ZONE ALARM SYSTEM 41

1141 LINEAR FM 30 W (ASSEMBLED) 6

1142 DIGITAL VOLTMETER WITH LED DISPLAY 39

KIT DESCRIPTION PAGE

1143 R.P.M. DIGITAL INDICATOR 15

1144 PLL SYNTHESIZER FM 88-108 Mhz 5

1145 TVI FILTER 39

1149 DIGITAL SOUND RECORDER 24

1150 PORTABLE ALARM ñ 41

1151 SUPER TV PATTERN GENERATOR 8

1152 FREQUENCY METER 10Hz-1MHz 39

1153 STAR LIGHT ñ 30

1154 TRANSMITTER’’ BUGS ‘’ DETECTOR 7

1155 TELEPHONE SCRABLER 33

1156 LOTTO-FORTUNE MACHINE 49

1157 SPECIAL LIGHT EFFECTS UNIT 31

1158 REMOTE CONTROL-RECEIVER 28

1159 REMOTE CONTROL-TRANSMITTER 28

1161 PORTABLE WALKMAN AMPLIFIER 2X2W 21

1162 DUBLE HEART FLASHER ñ ñ 31

1163 DOUBLE TIMER-SWITCH 9

1164 8CH.TIMER CONTROLLED BY P.C. 52

1165 1 TO 6 MIN.SUPERTIMER 11

1166 SUPER RIAA PREAMPLIFIER 18

1167 TELEPHONE LINES PRIORITY SWITCH 33

1168 LED ACTIVATED SWITCH 28

1169 POWER SUPPLY 3, 4.5, 6, 9, 12VDC/1.5A 46

1170 DIGITAL MESSAGE RECORDER/ PLAYER ñ 24

1171 RFI POWER SUPPLY 12-14V /3A 46

1172 UP-DOWN COUNTER 11

1173 DIGITAL DOWN TIMER 99 MIN WITH PIC 11

1175 CHRISTMAS TREE WITH LEDs ñ 31

1176 JINGLE BELLS WITH LEDs AND MUSIC ñ 31

1177 PROGRAMMABLE ELECTRINIC LOCK 42

1178 PRECISION TIMER 1-256 MIN 11

1179 LINEAR FM 15 W (ASSEMBLED) 6

1180 24H CLOCK/TIME SWITCH TWO OUTPUTS 11

1182 MUSICAL HOLD ON 34

1183 DIGITAL COUNTER WITH 3 DISPLAYS 11

1184 EMERGENCY LIGHT 42

1185 TELEPHONE IN USE INDICATION 34

1186 8 CH REMOTE CONTROL BY TELEPHONE 34

1187 VCO FM 88-108 Mhz / 3W 5

1189 REAR STOP - BRAKE LIGHTS FOR CAR 15

1191 ELECTRONIC PUT N`TAKE 49

1192 ELECTRONIC ROULETTE 50

1193 SUPER MICROPHONE PREAMPLIFIER 19

1194 DIGITAL TELEPHONE RECORDER 34

1195 MULTITONE CHIME 50

1196 COMPUTER INTERFACE 52

1197 2 ZONE ALARM SYSTEM 42

1199 HI FI AMPLIFIER 200W 21

Internet site: http://www.smartkit.gr 3

1001

TRANSMITTERS

FM TRANSMITTER 0.2W

A mini FM transmitter with two transistors.The first is

used as an AF preamplifier and the second is the RF

stage.The sensitivity of the preamplifier is exceptionally

high.The kit comes complete with a FET electret

microphone. It is designed to cover the 88-108 MHz

band, but it is very easy to change the frequency to

cover all the range between 63 and 130 MHz. Output

power: 0.2W RF. Max. current: 0.05 A.

SUITABLE BOX 2001

P.S.

PCB

9 VDC H

20x33mm

1009

FM TRANSMITER 1W

A simple but very powerful FM transmitter that will

give you a very pleasant surprise with its capabilities. It

is built around two transistors.The first is used as an

AF preamplifier and the second is the RF stage.The kit

includes the microphone which is piezoelectric.As an

aerial can be used an open dipole.

V 8-30 VDC

P.S. 1061

PCB 42x45mm

1021

SUITABLE BOX 2009

FM TRANSMITTER 15W (ASSEMBLED PCB)

A fantastic project! A very powerful FM transmitter

consisting of 4 stages. It uses transistors throughout

and in the output has the BLY 88 made by PHILIPS. It

can drive a LINEAR if greater power output is desired.

It delivers 15 Watts of RF. power on the air.As a

modulator preamplifier can be used with the SMART

KIT 1052.The aerial can be an open dipole, GROUND

PLANE, 5/8, J, or a YAGI.

V 12-18 VDC

P.S. 1171

PCB 70x220mm

1028

FM TRANSMITTER 4W

A small but nevertheless very powerful FM transmitter.

The transmitter circuit consists of three RF stages, and

an audio preamplifier. It can be modulated directly from

a piezoelectric microphone which comes in the kit or

from a preamplifier. It delivers 4 Watts of RF power on

the antenna.The antenna can be an open dipole or a

GROUND PLANE.

V 12-18 VDC

P.S. 1171

PCB 44x146mm

4 Internet site: http://www.smartkit.gr

TRANSMITTERS

1031

FM TRANSMITTER 25W (ASSEMBLED PCB)

A very interesting RF project! A powerful FM

transmitter consisting of 4 stages. It uses

TRANSISTORS throughout and in the output has the

BLY 89 made by PHILIPS which delivers 25 Watts on

the air. It can be used to drive a LINEAR if greater

power output is desired.As a modulator preamplifier

can be used the SMART KIT 1052.The aerial can be an

open dipole, a GROUND PLANE, a 5/8, a J, or a YAGI

V 12-15 VDC

P.S. 1171

PCB 70x220mm

1135

1144

1187

TELEPHONE ‘’BUG’’ TRANSMITTER

It is suitable for listening to telephone conversations in

a small distance around the transmitting point. It is

connected in series with the telephone and as soon as

the receiver is picked up it starts transmitting. It is

powered from the telephone line.Attention. Use this

device in accordance with your country regulations.

PLL SYNTHESIZER FM 88-108 MHz

Upgrade your FM transmitter, with an FM PLL

synthesizer, that ensures accurate tuning without the

slightest declination.This is accomplished by using a

combination of dip switches to select a certain

frequency.The stability of the circuit is excellent, due to

the Motorola’s MC145151 and a crystal. Bandwidth

88-108 MHz with 50KHz step.Two layer epoxy PCB. If

you use the 1144 along with the kit 1187, you have a

complete PLL transmitter that can drive a linear

amplifier for even more power.

VCO FM 88-108 MHz /3W

The ideal way to extend the range and the capabilities

of your transmitter without spending a lot of money.A

VCO-linear VHF amplifier for the band 88-108 MHz,

for transmitters with frequency modulation (FM).The

circuit is based on high frequency transistors leading to

a BFS22A, and ensures a power of 3 Watt in the

antenna. Easy tuning.

P.S.

PCB

P.S.

PCB

P.S.

PCB

FROM TEL. LINE

15X30mm

☎

24-30 VDC

65x12mm

24-30 VDC

65X160mm

Internet site: http://www.smartkit.gr 5

LINEARS - ENCODERS

1017

LINEAR CB 30 W

A linear amplifier that will make possible long distance

communications, with your existing CB equipment. It is

connected at the transmitter output before the

antenna and is very simple to built and adjust.The

heatsink is included in the kit.The circuit also has a

relay that will switch the aerial from the transmitter to

the receiver automatically.

V 13,5 VDC

P.S. 1171

PCB 88x44mm

1079

FM STEREO ENCODER

A generator that converts any FM transmitter to

STEREO.You can easily connect it to any existing FM

transmitter and without spending a lot of money and

making complicated conversions.You can improve the

standard of your broadcasting.Try it and start

broadcasting in professional STEREO today!

P.S.

230 VAC

T 24VAC/0,5A

PCB

a:35x156mm

b: 87x186mm

1141

LINEAR 30W FM (ASSEMBLED PCB)

The ideal way to extend the range and the capabilities

of your transmitter without spending a lot of money.A

linear VHF amplifier for the 88-108 Mhz band, for

transmitters with frequency modulation (FM).The

circuit is based on high frequency transistors leading to

a BLY89, and ensures a power of 30 Watt in the

antenna. Easy tuning.

V 13 VDC

P.S. 1171

PCB 68x118mm

1179

LINEAR 15 WATT (ASSEMBLED PCB)

The ideal way for transmission in small areas without

spending a lot of money.A linear VHF amplifier for the

band 88-108 MHz, that transmits with frequency

modulation (FM).The circuit is based on high frequency

transistors leading to a BLY88, and ensures a power of

15 Watt in the antenna. Easy tuning.

V 13 VDC

P.S. 1171

PCB 66x161mm

6 Internet site: http://www.smartkit.gr

RECEIVERS

1013

VHF - FM - TV RECEIVER

A receiver that lets you listen to all the frequencies

between 50 and 160 MHz. It can receive signals in AM

and FM.The tuning is done by means of a VARICAP

diode which gives the receiver greater stability. For the

audio output the receiver has a 5 Watt power amplifier

incorporated on the same board. Bandwidth: 50-160

MHz. Maximum current: 0.5A.AF output power:

5 Watts.

V 12-15 VDC

P.S. 1061

PCB 58X168mm

1038

AM - FM AERIAL AMPLIFIER

A small amplifier with a good gain factor, and a

bandwidth broad enough to cover all the broadcasting

frequencies from 1 to 150 MHz. Ideal for use in the car

or with any radio in “difficult” reception areas.A simple

project to build, even for the most inexperienced

beginners. Max. current: 10mA. Gain: 6dB.

P.S.

PCB

9-12 VDC

30x35mm

1055

FM RECEIVER

A small FM receiver that will surprise you with its

sensitivity and quality. It uses the TDA 7000 which is a

complete FM receiver in a single IC package. It features

varicap tuning for higher stability and also incorporates

a powerful audio amplifier with a 5W output.The kit

includes the loudspeaker. Sensitivity: 1.5V.Audio output

power: 5 Watts. Distortion 0.7%

V 9-15 VDC

P.S. 1061

PCB 52x80mm

1154

TRANSMITTER ‘’BUG’’ DETECTOR

A very simple and useful kit which can protect your

private life. It detects and locates any transmitter (bug)

device which transmits in any frequency range up to

1GHz.

P.S.

9 VDC H

PCB 54x66mm

Internet site: http://www.smartkit.gr 7

1083

TV - VIDEO

VIDEO SIGNAL AMPLIFIER

This project comes to solve the problem of many users

of home VIDEOS who want to drive more than one TV

set from the same VCR or those who want to make a

duplicate recording of a tape on another VCR. It has

one input and up to three outputs.

V 12 VDC

P.S. 1061

PCB

35x120mm

1084

SUITABLE BOX 2083

TV LINE AMPLIFIER

A broadband aerial amplifier suitable for TV1,VHF and

UHF. It can also be used for FM receivers. It has a very

low power consumption. Frequency range 40-860 MHz.

Signal gain: 15-22dB. Input output impedance: 75Ohm.

V 9-18 VDC

P.S. 1061

PCB

41x55mm

1117

1151

TV PATTERN GENERATOR

An inexpensive and relatively easy to built TV PATTERN

GENERATOR that will be very useful to the professional

technician who does TV service on location. Now there

is no need to carry out of the laboratory expensive and

heavy equipment.The generator produces horizontal

and vertical lines to create a grid pattern. It has an

oscillator that determines the output frequency and

operates in the UHF band.The number of the displayed

lines can be adjusted.

SUPER TV PATTERN GENERATOR

An easy to build TV pattern generator. It is built around

the well known IC, ZNA234E made by FERRANTI. It

produces six different patterns: horizontal lines, vertical

lines, horizontal and vertical lines (cross hatch), white

dots in a black raster, grey scale, and black raster. Ideal

for TV service, and adjustments.The patterns are

selected by a six position selector. Power dissipation:

130mA. Output impedance: 75Ohm.

P.S.

PCB

P.S.

PCB

9 VDC H

82x118mm

9 VAC

9VAC/0,5A

56x100mm

8 Internet site: http://www.smartkit.gr

TIMERS - COUNTERS

1020

0-5 MIN.TIME SWITCH CE

A simple time switch continuously adjustable between

0 and 5 minutes. Suitable for alarms, photographic

laboratories etc. It uses the well known timer IC 555.

It has a relay capable of handling up to 250V/2 A.This

circuit can replace commercial time switches at a

fraction of the cost. Max.current: 50mA. Delay time: 0-5

mins.

12 VDC

P.S. 1061

PCB

39x50mm

1118

TIME-SWITCH WITH TRIAC 0-10 MIN

A heavy duty time switch without relay, suitable for

many applications like the control of the lights in a

staircase, for professional-industrial applications etc. It

is powered directly from the mains without a special

power supply.The timing period can be adjusted from

0-10 min.

P.S.

PCB

230 VAC

72x87mm

1121

1163

GIANT DIGITAL CLOCK

A digital clock that shows the time on a big display,

suitable for schools, clubs, restaurants, etc.The circuit is

based on the microproccessor PIC 16C57, and ensures

accuracy, reliability and easy construction.The time is

shown in four large red digits that can be seen in a

distance up to 20 meters.The time can be adjusted by

small buttons in rear of the display.The

microproccessor’s PCB can be split from the digits’

housing.

DOUBLE TIMER-SWITCH

A double timer-switch which includes two independent

circuits.The adjustable time lies between 30 seconds

and 5 minutes.The operation of the timer-switch can

be ON-OFF or ON-OFF-ON etc. it can be used in

automation circuits, traffic lights etc.

V 12-14 VDC

P.S. 1063

PCB 75X275mm

V 12 VDC

P.S. 1061

PCB

67x122mm

Internet site: http://www.smartkit.gr 9

TIMERS - COUNTERS

1165

1 TO 6 MIN. SUPERTIMER

This is a general purpose adjustable timer built around

the well known IC 555.The time can be adjusted from

55 sec to 6 1/2 min. Power consumption 45mA. It can

be used in automation, alarms, lights, photographic

laboratories etc.

V 9-15 VDC

P.S. 1061

PCB

44x60mm

1172

UP-DOWN COUNTER

It is a general purpose up / down counter with a preset

function. It is built around a microcontroller which

gives the maximum of accuracy.The indication is

provided using four seven segments displays.The unit

has two indepentet outputs of 2A/250VAC controlled

by means of relays.

P.S. 1061

PCB

9-12 VDC

a: 103x105mm

b: 51x122mm

1173

1178

DIGITAL DOWN TIMER 99 min WITH PIC

A simple and useful circuit that will help you in

accurate time countdown.The circuit is based on the

PIC16C54 to ensure accuracy and reliability. It is easily

programmable from 99 - 0 minutes for down counting

and when it reaches point zero, it activates a relay. Ideal

for use in automatic machines and in programmable

time counting in general, and has the capability of

backup.The unit is consisting from two different PCB

boards, one for the control unit and the second for the

display panel. Consumption 220mA max.

PRECISION TIMER 1 - 256 MINUTES

A simple and useful circuit for accurate timing.The

circuit is based on the microproccessor PIC16C54 that

ensures reliability and accuracy. Easy programmming

with dip switches.When the desired reprogrammed

time is reached, a relay is activated. Ideal for use with

all types of time controlled machines.

12 VDC

P.S. 1061

PCB

a: 40x93mm

b: 80x93mm

12 VDC

P.S. 1061

PCB 72x84mm

10 Internet site: http://www.smartkit.gr

TIMERS - COUNTERS

1180

24H CLOCK/TIME SWITCH WITH 2 OUTPUTS

Based on a microcontroller it has a real time clock,

two indepentet outputs (2A/250VAC) controlled by

means of relays and a display with four seven segment

displays.The unit can also supply a bacup battery (not

included) to keep the data in case of a power failure.

12 VDC

P.S. 1061

PCB

a: 80x93mm

b: 38x93mm

1183

DIGITAL COUNTER WITH 3 DISPLAYS

A useful circuit that helps you to count consecutive

incidents.The circuit depends on the microproccessor

PIC 16C45 and ensures accuracy and reliability.The

result is shown on a 3 digit display, witch means you

have the ability to count until 999.When number 999

is reached, the circuit automatically restarts counting

from 000. Large red display for good readability from

long distance.

V 9-12 VDC

P.S. 1061

PCB 62x142mm

Smart... as you like it!

ñ The ordinary form of the kit for people who enjoy assembling and

have the sense of adventure, and know basic electronics.All the

components of the kit, even the solder, are included in the pack.A

careful reading of the instructions and a soldering iron are all you

need, and you your kit will be ready use.

ñ If you wish your kit to look professional, the only thing you need is

using a smart box.All the boxes are silk printed, drilled and are the

ideal housing for smart kits. In order to choose the right box, you just

have to remember that they have the same code number as the

corresponding kit.The only difference is that the first digit from the

P/N of the kit «1» is replaced by the number «2». (e.g. smart box 2014

for the kit 1014).

ñ Do you wish to buy a popular kit as a ready made electronic

apparatus? You can select any one from our 5000 line.All the units are

professionally assembled and cased in a smart box, fully tested,

adjusted and ready for use.The ready made devices have the same

code number as the kit,The only difference is that the first digit from

the P/N of the kit «1» is replaced by the number «5» (e.g. the 5014 is

the ready made device for the kit 1014).

Internet site: http://www.smartkit.gr 11

CARS AND BIKES

1011

1019

1034

MOTORBIKE ALARM

A project that protects your beloved motorbike. It uses

a simple vibration sensitive contact that detects the

slightest movement of the motorbike (the sensitivity is

adjustable) and triggers the alarm.When the alarm is

triggered the output relay closes and its up to you to

connect across it a siren, (e.g. 1003) the motorbike’s

horn or any other warning device.The circuit has a preset

alarm time.When that elapses it resets automatically.

SUITABLE BOX 2011 ASSEMBLED UNIT 5011

CAR ALARM SYSTEM

A circuit that will effectively protect your car from theft.

It can be triggered from the vibrations that will inevitably

cause anyone attempting to break into the car. It will

also detect a door opening as long as it is connected

with the courtesy light by sensing the voltage drop

across the car battery when the light is turned on. It has

entry and exit delays and the alarm duration is

adjustable. It resets automatically after an alarm.

SUITABLE BOX 2019 ASSEMBLED UNIT 5019

CAR BATTERY CHECKER

A very simple, easy to built and inexpensive circuit that

once installed will monitor constantly the state of

charge of your car battery and will protect you from

unpleasant “surprises”.Very small in size, can be fitted

easily in every dashboard. Max. current: 40 mA

P.S.

PCB

P.S.

PCB

P.S.

PCB

6-12 VDC

57x64mm

6-12 VDC

47x55mm

12 VDC

36x47mm

1058

ELECTRONIC CAR IGNITION

A useful project for the car. It will help you to improve

your car performance and at the same time it will

reduce maintenance cost, as the use of an electronic

ignition system reduces wear of distributor contacts

and prolongs the useful life of the spark-plugs.The fuel

consumption is also reduced and the car starts a lot

easier on cold days.

SUITABLE BOX 2058 ASSEMBLED UNIT 5058

V 12 VDC

P.S.

PCB 67x135mm

12 Internet site: http://www.smartkit.gr

CARS AND BIKES

1066

MOTORBIKE INTERCOM

A very useful kit for motorists, which can also be used

wherever a light, economical, and portable intercom is

required.The circuit has very low consumption making

it possible to operate for a long time on two AA 1.5V

batteries. Current: 10mA

P.S.

PCB

3 VDC H

44x55mm

SUITABLE BOX 2066 ASSEMBLED UNIT 5066

1082

CAR VOLTMETER WITH LEDs

A very accurate voltmeter for your car. It uses a dot

display with 16 LEDs of different colours (red, orange,

green), and gives you an indication of the battery

voltage with a 0.5V accuracy. Much more accurate than

conventional analogue meters.The colour coding of the

LEDs gives you an immediate indication of the battery

state of charge. Max. current: 50mA.

V 12 VDC

P.S. 1061

PCB 50x105mm

1086

CAR’S MUSIC TO LIGHT MODULATOR

Bring something of the atmosphere of a DISCO in

your car with this fascinating light effect.The circuit has

three different channels with 6 LEDs each that will

respond to different frequencies to create a beautiful

light effect.Add colour to your car interior with this

easy to built project. Max. current: 0.2A.

V 12 VDC

P.S. 1061

PCB 68x74mm

1088

“KITT” SCANNER

Make your car look like “KITT” the computerised car

in the “KNIGHT RIDER” TV series.The kit comes

complete with a special red mask for the lights just to

make the effect look more like the real thing.The

speed of movement of the lights is adjustable by means

of a trimmer.

V 12 VDC

P.S. 1061

PCB 60x76mm

Internet site: http://www.smartkit.gr 13

CARS AND BIKES

1092

IN-CAR IONISER

A device that can improve your health and your

temper especially during the traffic jam in big cities.

It brings nature in your car, refreshes the air and

enriches the air with negative ions which are very

important for our lives. It can be installed in your car

very easily due to its small size.

P.S.

PCB

12 VDC

49x100mm

1093

WINDSHIELD WIPER CONTROLLER

A very useful circuit that will let you adjust the speed

of your car wipers to the desired point according to

the heaviness of the rain. It can be fitted very easily to

any car.The kit includes the relay. Current: 50mA.

P.S.

PCB

12 VDC

33x86mm

1095

LEAD ACID BATTERY CHARGER

This circuit is a lead-acid battery charger that

incorporates a rectifier, a voltage regulator and an

automatic electronic switch to put it in fast or slow

charge state according to the condition of the battery

connected to it. It has a visual indication of its state

and it is mainly intended for continuous use in the

maintenance of the batteries in alarm systems and

emergency lights.Max. current: 100mA.

V 12 VDC

P.S. 1061

PCB 50x72mm

1097

CAR INTERFERENCE SUPPRESSOR (ASSEMBLED PCB)

A simple circuit that was designed to eliminate the

interference signals generated by a car engine.These

signals are particularly annoying when trying to listen

to weak radio broadcasts.The car renders very useful

services to its owner. Unfortunately, it also produces a

high level of radio frequency interference signals

originating from the car’s generator, wipers, flash

indicators, air conditioning etc.

P.S.

PCB 58x70mm

14 Internet site: http://www.smartkit.gr

CARS AND BIKES

1115

COURTESY LIGHT DELAY

A clever and useful circuit for the driver.When you

enter the car and the doors are closed it keeps the

interior lights on for a few seconds to give you time to

put the key in the lock, fasten your seat-belt and start

the car. Stop fumbling in the dark! The same delay is

introduced when you leave the car giving you time to

check the alarm system and see if you have forgotten

something.The delay is adjustable.The circuit has been

designed to work off the car battery and it is small

enough to fit anywhere in the car.

NEW DESIGN

V 12 VDC

P.S.

PCB 46x58mm

1120

R.P.M. INDICATOR WITH LEDs

The electronic version of the most essential measuring

instrument within a car. It is reliable and simple to

construct.The small size makes the installation possible

almost anywhere within a car. It provides a reading

within the range of 0 to 7000 rpm.The display takes

the form of a circular light bar made up by LEDs and

provides a reading with a discrimination of 250

revolutions per LED. Max. current: 130mA.

P.S.

PCB

12 VDC

54x54mm

1143

R.P.M. DIGITAL INDICATOR

The most essential and most useful instrument needed

for a car is offered in its electronic version.The circuit

is reliable, highly accurate and easy to assemble.The

engine revolutions are counted and the result is

displayed on a four digit display. Engine revolutions in

the range between 0 and 7000 r.p.m. are measured.The

circuit can be installed in almost any car due to its

small size. Dissipation current: 180mA.

P.S.

PCB

12 VDC

39x65mm

1189

REAR STOP - BRAKE LIGHTS FOR CARS

The car manufacturers nowadays equip most of the

cars with an addittional “STOP” light that is placed on

V 12 VDC

the top of the trunk or at the bottom of the rear

window.This way, during braking, this specific light can

be seen from more than one drivers that follow you,

while the normal “STOP” lights are usually hidden by

the following car. Unfortunately, older cars don’t have

this accessory, but now you have the ability to get one.

SUITABLE BOX Included

P.S.

PCB 10x218mm

Internet site: http://www.smartkit.gr 15

PREAMPLIFIERS-MIXERS

1010

1023

1024

5-INPUTS STEREO MIXER

A 5-input mixer with professional specifications.

Suitable for DISCOS, Hi-Fi systems, FM transmitters

etc. It uses professional sliding potentiometers to

control the input levels. It has 2 PICK-UP inputs, 2

TAPE or TUNER and a MICROPHONE input and also

features a MONITOR output. Freq. response: 20Hz-

15KHz (-3dB). Distortion: 0.05%..Output: 1V/47KOhm.

Sensitivity: MIC 2mV, P.U. 3mV,TAPE or TUNER 150

mV.

DYNAMIC HEAD PREAMPLIFIER - RIAA

A circuit specially designed for moving magnet PICK-

UP heads. It incorporates RIAA equalisation and is of

course STEREO. It can be combined with SMART KIT

1032 (Stereo tone controls) to form the base of a Hi-

Fi system. Sensitivity: 2-5mV. Output level: 150mV. Input

impedance: 47 KOhm. Frequency response: 20Hz-

20KHz.

SUITABLE BOX 2023 ASSEMBLED UNIT 5023

MICROPHONE PREAMPLIFIER

A MICRO preamplifier suitable for dynamic,

electrostatic and electret (condenser) microphones.

Very useful for transmitters, DISCOS, P.A. systems etc.

It will work very well with the SMART KIT 1052, (3

input mixer). Frequency response: 50Hz-15KHz.

Distortion: 0.5%.

V 12 VDC

P.S. 1061

PCB 165x220mm

V 18-24 VDC

P.S. 1068

PCB 60x60mm

V 9-20 VDC

P.S. 1061

PCB 40x45mm

1050

3-INPUTs Hi-Fi PREAMPLIFIER

This is a complete STEREO preamplifier with tone

controls, dynamic head stage with RIAA correction

(3mV sensitivity),TAPE OUT (150mV),AUX input (200

mV) and TAPE IN (200 mV). It also has a SCRATCH

filter and a MONO-STEREO switch.The switches are

push-button type and are incorporated in the printed

circuit board. It can be used with any power amplifier.

Very good value for money. Frequency response: 15Hz

-30KHz. Output voltage: 1.5 V

16 Internet site: http://www.smartkit.gr

P.S.

24 VDC

PCB 72x275mm

PREAMPLIFIERS-MIXERS

1052

3-INPUTs MONO MIXER

This circuit is a 3-input MONO mixer with

independent level control for every input. It also

incorporates separate BASS and TREBLE controls. It

can be used with SMART KITs 1023 and 1024 to make

its inputs sensitive enough for MICROPHONE and P.U.

Input sensitivity: 150mV. Max. current: 100mA.

V 18 VDC

P.S. 1068

PCB 60x185mm

1054

4-INPUTs INSTRUMENT MIXER

A kit for the musician. It is very useful as it will let you

use 4 instruments at the same time on the same

amplifier input. It has very good mixing quality despite

the simplicity of the circuit and its very low power

consumption makes it possible to use the mixer with a

small 9V battery for a long time. Max. current: 20 mA.

P.S.

PCB

9 VDC

30x61mm

1057

CASSETTE HEAD PREAMPLIFIER

A preamplifier using an IC capable of raising the low

output of the cassette head to a level that will drive

the TAPE IN input of a stereo preamplifier. It works

well with any STEREO preamplifier.Very low distortion,

high amplification factor and very good frequency

response. Frequency response: 20Hz-40KHz. Max

current: 20mA.

V 7-20 VDC

P.S. 1061

PCB 43x50mm

1070

Hi-Fi PREAMPLIFIER

A preamplifier designed for the most demanding Hi-Fi

listeners. It uses the very latest technology in audio

circuits as it is fully DC controlled. It is completely

immune to noise from potentiometers or from pick up

noise from long control wires as they are only carrying

control voltages and not audio signals. Max. current:

30mA. Output level: 1V. Frequency response: 20Hz-

20KHz.

V 12 VDC

P.S. 1061

PCB 61x185mm

Internet site: http://www.smartkit.gr 17

PREAMPLIFIERS-MIXERS

1071

4-INPUTs SELECTOR FOR 1070

A circuit designed to complement the SMART KIT

1070 using the same DC control technology and

compatible input and output levels with the 1070. It

incorporates a moving magnet preamplifier stage with

RIAA equalisation. It can switch up to 4 inputs (P.U.,

TUNER,AUX and TAPE) and also incorporates a TAPE

OUT for recordings. Current 30mA. Frequency

response: 5Hz-22KHz.

V 12 VDC

P.S. 1061

PCB 68x130mm

1126

3 MICROPHONE INPUTS PREAMPLIFIER

A preamplifier for microphones equipped with BASS,

TREBLE and VOLUME controls. Used together with

SMART KIT 1127 it can form a complete microphone

mixer of professional quality. Input sensitivity: 2.5-

300mV. Max. current: 50mA.

P.S.

PCB

30 VDC

49x112mm

1127

TONE CONTROLS FOR 1126

This is the MASTER unit that in combination with one

or more SMART KIT 1126 units can form a complete

MICROPHONE MIXER CONSOLE with individual and

master controls. It has MASTER BASS,TREBLE and

VOLUME controls. Max. current: 50mA. Input

sensitivity: 2.5-300mV.

P.S.

PCB

30 VDC

46x100mm

1166

SUPER RIAA PREAMPLIFIER

With the spreading of the CD players, many

manufacturers of amplifiers and mini sound systems

have a tendency to remove the phono input from their

products.As a result, the old but good pick ups cannot

operate with these machines, and many LP collections

remain useless.The problem can be solved the best

way using this application.The circuit is based on the

special and supplemented circuit LM833 that ensures

low noise, high sound quality and reliability,

consumption 70mA.

18 Internet site: http://www.smartkit.gr

P.S.

2x15 VAC

2x15VAC/0,5A

PCB 83x91mm

PREAMPLIFIERS-AMPLIFER

1193

MICROPHONE PREAMPLIFIER

A small and useful circuit that amplifies the microphone

signal to line level. It accepts dynamic and condenser

microphone with internal supply. It also operates the 3

pole-condenser microphones. It has two inputs with

different sensitivity.The circuit is based on the

integrated circuit LM833 that ensures low noise, low

distortion, high sound quality and reliability.The gain

can be adjusted by a trimmer to avoid overloading and

distortion.

P.S.

PCB

9 VDC H

44x70mm

1025

Hi-Fi AMPLIFIER 7 W

A simple but very useful and powerful amplifier,

offering great performance at a very modest price. It

can be matched very well with SMART KITS 1023 and

1024. It can be used in intercoms, portable audio

systems, in the car etc. Max.current: 500mA. Frequency

response: 20Hz-15KHz.

V 12-18 VDC

P.S. 1061

PCB 55x55mm

1033

Hi-Fi AMPLIFIER 60 W

An amplifier for the most demanding constructors. It

combines well with kits 1032, 1002, 1016, 1050.The

circuit incorporates electronic protection for the

output transistors. Output power: 60W/8Ohm or

80W/4Ohm (RMS). Quiescent current: 60mA. Max.

current: 4A.Amplification factor: 24. Sensitivity: 0.707-

1.5V. Freq. response: 5-35KHz. Distortion: 1KHz -

0.05%, 10KHz - 0.08%, 20 KHz - 0.1%.

V ±40 VDC

P.S. 1060

PCB 77x110mm

1040

Hi-Fi AMPLIFIER 10 W

This is a general purpose Hi-Fi amplifier. It can be

combined well with SMART KIT 1023 and 1024. It can

also be used with any STEREO preamplifier from

SMART KIT and with two 1040s you can make a very

good low power STEREO Hi-Fi system.Very good

value for money. Input sensitivity: 50mV. Output

impedance: 2-8Ohm. Freq. response: 40Hz-15KHz.

Quiescent current: 20 mA.

V 12-15 VDC

P.S. 1169

PCB 27x60mm

Internet site: http://www.smartkit.gr 19

1041

AMPLIFERS

Hi-Fi AMPLIFIER 25 W

A 25 Watt power amplifier, with very high quality,

suitable for the car or for portable P.A. applications.

Frequency response: 40Hz-20KHz. Input sensitivity:

100mV. Max. current: 2A. Quiescent current: 20mA.

Load impedance: 2-8Ohm. Output power: 25 Watts.

V 12-15 VDC

P.S. 1169

PCB

36x74mm

1046

BOOSTER AMPLIFIER 2x25 W

A very well designed power amplifier suitable to be

used in the car as a power booster for the existing

stereo system. It can be connected directly to the

output of the car STEREO (cassette player or radio). It

can also be used together with SMART KITs 1002 and

1044.The heatsinks are included in the kit. Quiescent

current: 50mA. Input sensitivity: 200mV. Load

impedance: 4Ohm.

V 12 VDC

P.S. 1171

PCB 75x76mm

1077

Hi-Fi AMPLIFIER 100 Watt

The most powerful Hi-Fi amplifier in the SMART KIT

range. It uses very high quality DARLINGTON power

transistors in the output, it is fully protected and the

sound quality is exceptionally good. It is offered

complete with a large heatsink. It can be used with the

SMART KITs 1023, 1032, 1043, 1050, 1070, 1071.

Frequency response: 10Hz-45KHz. Distortion: 0.05%.

V ±40 VDC

P.S. 1060

PCB 80x120

1100

INTEGRATED STEREO AMPLIFIER 2x18 W

A complete STEREO amplifier in one board. It has 4

inputs (P.U.,AUX,TUNER and TAPE). It is designed with

the latest technology and uses DC for the BASS,

TREBLE, BALANCE and VOLUME CONTROLS. Ideal

for use as a booster for WALKMAN. Frequency

response 20Hz-20KHz with only 0.5% distortion.The

power supply is included in the amplifier board.

SUITABLE BOX 2100 ASSEMBLED UNIT 5100

V 2x14 VAC

P.S.

T 2x14VAC/4A

PCB 126x247mm

20 Internet site: http://www.smartkit.gr

AMPLIFERS

1109

Hi-Fi AMPLIFIER 40W

A Hi-Fi amplifier with very good specifications despite

its apparent simplicity. It can be used together with

SMART KITs 1070, and 1071 to make a modern

STEREO amplifier of very high quality. It has very good

frequency response and low distortion. Frequency

response: 40Hz-50KHz. Distortion: 0.5%. Input

sensitivity: 850mV.

P.S.

PCB

35-45 VDC

48x89mm

1113

1161

Hi-Fi AMPLIFIER 2x18 W

A STEREO power amplifier for small systems. It is the

same circuit as in SMART KIT 1100 but without the

preamplifier and the power supply sections. It can also

be used as a booster for existing small systems or to

drive a second pair of speakers besides the ones

already connected to the existing system. Input

sensitivity: 250mV. Input impedance: 500KOhm.

Distortion: 0.5%. Signal to noise ratio: 80 dB. Frequency

response: 20Hz-20KHz.

SUITABLE BOX 2123

2x2W PORTABLE WALKMAN AMPLIFIER

A simple and reliable stereo amplifier 2X2 Watts,

suitable for any walkman or any other sound source

where we need an amplifier even by using the level

signal of the headphones output. It’s size is very small

making it ideal for portable application. Max current

dissipation 400mA, output power 2X2 W/4Ohm

frequency response 20Hz-20KHz, typical distortion

0.2%.

P.S.

PCB

P.S.

PCB

±18 VDC

46x128mm

6-9 VDC

34x61mm

1199

HI FI AMPLIFIER 2 x 70W / 8Ohm ( 2 x 100W/4Ohm)

Based on the old and reliable components. It is

structured from two separate amplifiers that can give

you up to 100 watts / 4Ohm.With the help of a

jumper you can join the two amplifiers in one with an

out put up to 200 watts /4Ohm.The kit also includes a

delay start and current limit for loudspeaker

protection.To adjust the bias is very easy and is done

with the help of two leds.

P.S.

2x36 VDC

PCB 140x165mm

Internet site: http://www.smartkit.gr 21

1018

GUITAR TREMOLO

MUSIC

TREMOLO with professional specifications. It creates

fantastic effects with any electric guitar. A very useful

project for any music enthusiast, suitable for amateurs

and professionals alike.The amount of TREMOLO and

the speed are adjustable.The power consumption is

very low. Input sens.: 200mV.TREMOLO freq.: 1-20Hz.

Max. current: 20mA

P.S.

PCB

9VDC H

51x100mm

1053

ELECTRONIC METRONOME

A kit for musicians, to help them keep their tempo.

Easy and simple to built, yet very accurate and

repeatable. Save a lot of money compared to similar

commercially available metronomes.The tempo can be

adjusted with a potentiometer.The speaker is included

in the kit. Due to low current consumption the battery

lasts long time. Max. current: 30 mA. Output power:

0,5W.

P.S.

PCB

9VDC H

30x32mm

1091

GUITAR PREAMP.WITH TONE CONTROLS

This is a preamplifier with very good specifications that

will satisfy even the most demanding users. It has BASS

and TREBLE controls and can be connected to any

amplifier.The circuit is small enough to be placed inside

the guitar. It uses the well known IC TL-082. Max.

current: 50mA.

V 9-12 VDC

P.S. 1061

PCB 53x53mm

SUITABLE BOX 2091 ASSEMBLED UNIT 5091

«OHM’s LOW»

SYMBOLS

U = Voltage in Volts

= Current in Amperes

R = Resistant in Ohms

= Power in Watts

22 Internet site: http://www.smartkit.gr

1012

SOUND

SPRING REVERBERATION

A high quality reverberation unit with Hi-Fi

specifications. It can be connected to Hi-Fi systems to

create interesting sound effects or it can be used to

create the feeling of “depth” in microphone

installations or other similar applications.The amount

of reverberation is adjustable.

V 12 VDC

P.S. 1061

PCB 42x86mm

1016

LOUDSPEAKER PROTECTION UNIT

An ideal accessory for any audio system. It can be used

with any amplifier from SMART KIT or any other

amplifier having an output between 1 and 100 Watts. It

protects your speakers against peak signals and you

from unpleasant and expensive surprises! It completely

eliminates the possibility of loud speaker burning due

to overloading. Maximum current: 50mA. Quiescent

current: 2mA. Maximum input power: 100 Watts.

V 9-15 VDC

P.S. 1061

PCB 59x74mm

1032

STEREO TONE CONTROLS

This circuit is an active STEREO tone control that will

accept in its input signals from 150 mV to 1V and

provides in the output 0.5V to 3.5V.The distortion is

0.02% and the frequency response is 10Hz to 25KHz. It

can be used with the kits 1023 and 1024 to make a

complete STEREO Hi-Fi amplifier, without much

money.

V 18-30 VDC

P.S. 1068

PCB 52x100mm

1043

LOUDNESS STEREO UNIT

An active loudness STEREO unit that will add a new

dimension to your listening pleasure especially at the

lower output levels. Suitable for all the amplifiers and

preamplifiers in the Smart Kit line.Very low distortion

and noise. Max.current: 50mA.

V 9-28 VDC

P.S. 1068

PCB 50x87mm

Internet site: http://www.smartkit.gr 23

1044

GRAPHIC EQUALIZER

SOUND

A graphic equalizer with five bands over the audio

spectrum.A must for those who wish to listen to real

Hi-Fi sound and want the best frequency response with

a minimum of distortion. Ideal for the car.Adjustment

frequencies: 60, 250, 1000, 4000, and 16000 Hz. Max.

current: 100mA. Output level: 1Vpp.

V 12 VDC

P.S. 1061

PCB 48x144mm

1112

LOUDSPEAKER PROTECTION WITH DELAY

A very useful circuit for those who built their own

amplifiers. It will protect the speakers from

overloading, DC, and other dangerous signals. It

protects both channels at the same time and also

connects the speakers with the amplifier a short time

after the power is turned ON, thus protecting the

speakers from the “THUMP” that is usually heard and

which can sometimes destroy your expensive speakers.

V 12 VDC

P.S. 1061

PCB 52x68mm

1149

DIGITAL SOUND RECORDER

Digital recording and sound reproduction unit, ideal for

message announcements, alarm systems, automatic

sellers and also wherever there is a need for message

announcement without the use of the classic cassette

recorder. Maximum recording time: 2 minutes. Sampling

frequency: 16, 32 and 64 KHz. Power dissipation:

150mA. Output power: 0,5W 8Ohm.

V 9 VDC

P.S. 1169

PCB 75x175mm

1170

DIGITAL MESSAGE RECORDER / PLAYER

The kit is a digital cassette player that is capable to

store the message in the memory of an IC. It is

suitable for exhibition halls, presentation halls, railway

stations, bus stations and generally in every place

where the announcement of short messages is very

important.

V 9-15 VDC

P.S. 1061

PCB 112x166mm

24 Internet site: http://www.smartkit.gr

SOUND EFFECTS

1035

SPACE SOUND EFFECTS

Mysterious sounds and other science fiction-like effects

for modern people living in the space age.A really

fascinating project. In the output of the circuit you can

connect any audio power amplifier. Maximum current:

40m A. Output voltage: 2 Vpp

V 12 VDC

P.S. 1061

PCB

45x46mm

1045

SOUND EFFECTS GENERATOR

An easy to built project that will create many

interesting sound effects. It can produce many different

sounds from bird chirps to sirens.The sound

combinations which are produced are practically

infinite! Max. current: 200mA. Output power: 0.05

Watt.

P.S.

PCB

9 VDC H

54x85mm

SUITABLE BOX 2045

1131

ROBOT VOICE

A very interesting circuit that will distort your voice

and will make it similar to the mechanical voice of a

ROBOT.Very good sound effect for DISCOs, radio

stations and for playing jokes to your friends who will

think that you have a robot at home which answers

the phone for you! Max. current: 100mA.

V 9 VDC H

P.S. 1169

PCB 42x71mm

TRANSISTORS PIN OUTS

Internet site: http://www.smartkit.gr 25

1004

AUTOMATION

LIGHT SWITCH

A simple and inexpensive circuit, suitable for many

applications like the automatic switching of the lights in

a shop-window or a room, according to the ambient

light level, for alarm systems, production control,

remote controls etc.The circuit uses a light dependent

resistor that changes its value according to the amount

of light it receives, and three transistors which are used

to amplify the signal from the LDR and operate a relay.

V 12VDC

P.S. 1061

PCB 30x63mm

1005

TOUCH SWITCH

A circuit capable of opening and closing any circuit by

simply touching its contacts.The relay contacts are

rated at 250V 2A. It can also be used for remote

control applications.The “heart” of the circuit is the

integrated circuit CD 4001.A small transistor is driven

from the output of the IC and this in turn is used to

activate the relay. Max. current: 30 mA.

V 12VDC

P.S. 1061

PCB 44x55mm

1047

SOUND SWITCH

This is a switch that can be operated by means of

sound. It can be used to turn an apparatus ON and

OFF from a distance. Suitable for alarm systems. It can

be adjusted to respond to voice, hand clapping or

almost any sound.Very sensitive.When activated it will

stay in this condition until it receives another sound.

V 9-12VDC

P.S. 1061

PCB 47x74mm

1048

SUITABLE BOX 2047

ELECTRONIC THERMOSTAT

This is a switch that will be activated when its sensor

reaches a certain temperature.The sensor is a very

sensitive THERMISTOR.The circuit consists of three

transistors, the last of which is used to activate a relay

having 250V/2A contacts.The temperature that will

trigger the circuit can be adjusted.Very useful in safety

devices when a certain temperature level must be kept.

V 12-15VDC

P.S. 1061

PCB 29x63mm

26 Internet site: http://www.smartkit.gr

AUTOMATION

1072

AUTOMATIC MAINS LIGHT SWITCH

This is a very simple automatic switch that is capable

of switching a light bulb on when the ambient light

level is decreased.The bulb is switched off again as

soon as the ambient light level is restored. It is ideal for

switching normal light bulb loads.The circuit is very

simple as it consists of only six components.The P.C.B.

is so small that it can easily fitted within the housing of

any normal electrical switch.

P.S.

PCB

230VAC

21x33mm

1073

VOX FOR AUTOMATIC RECORDINGS

This is a voice activated switch and can be used on

transmitters, CB radio etc. making unnecessary to use

the PRESS TO TALK switch, something very useful

when we need hands free operation. It can also be

used for voice recordings to switch the tape recorder

ON and OFF whenever somebody says something, thus

making the tape last much longer. It has a MIC input, a

delay circuit and adjustable sensitivity.

V 12VDC

P.S. 1061

PCB 35x73mm

1076

ELECTRONIC THERMOSTAT SWITCH

A simple circuit for use in control applications that also

take the ambient temperature into account. It

combines a low constructional cost with high accuracy.

The circuit may be set to operate within a range from

-10ºC up to +125ºC. It may be used in either domestic

or industrial applications.

P.S.

PCB

230VAC

67x88mm

1080

LIQUID LEVEL SENSOR / RAIN ALARM

A very useful circuit in applications requiring the

effectiveness of a fluid level. It can also be used as a

rain detector.With a suitable sensor that you can easily

construct. Max. current: 60mA. Relay: 250V/2A

V 12VDC

P.S. 1061

PCB

31x57mm

Internet site: http://www.smartkit.gr 27

1081

AUTOMATION

FLUID LEVEL DETECTOR

A simple but reliable circuit that was designed for using

in applications requiring the detection of a fluid level. It

is capable of detecting the absence, the presence and

the level of water and other polar liquids. It may be

used within automated fluid distributors, washing

machines, irrigation systems, water and fuel tanks,

burner systems, heating installations, etc.

P.S.

PCB

230VAC

53x77mm

1158

REMOTE CONTROL RECEIVER

The kit in co-operation with the transmitter Smart kit

1159 can be used in many applications such as garage

doors, car alarms, door lock etc.There is a choice of

different codes by means of a dip switch.

NEW DESIGN

V 12VDC

P.S. 1061

PCB

54x120mm

1159

REMOTE CONTROL TRANSMITTER

This transmitter in co-operation with the receiver

smart kit 1158 can be used in many applications such

as garage doors, car alarms, door lock etc.There is a

choice of different codes by means of a dip switch.

NEW DESIGN

V 12VDC H

P.S.

PCB

30x40mm

1168

SUITABLE BOX Included

LED ACTIVATED SWITCH

A simple circuit that many of you have often dreamed

of in the past.We may have a circuit that displays an

indication by means of a LED and we wish to trigger

another circuit from this indication.This circuit does

exactly this job.. It can be triggered from 1.4VDC and

has an output capable of handling 2A/250VAC by

means of a relay. It can be used in automation

applications, control rooms, vox circuits etc.

P.S.

PCB

6-12VDC

37x45mm

28 Internet site: http://www.smartkit.gr

LIGHT MODULATORS

1006

MUSIC TO LIGHT EFFECT 800 W

Light effects, ideal to give the rhythm to any party or

disco without much money.Very simple construction.

Success and satisfaction guaranteed.Very safe operation

as it uses an optoisolator as a coupling device between

the audio and the mains controlling stages of the

circuit. A plastic small case is supplied with the kit.

Power handling: up to 800 Watts.

P.S.

PCB

230VAC

37x55mm

SUITABLE BOX 2006 ASSEMBLED UNIT 5006

1014

3-CH.WIRELESS LIGHT MODULATOR

A 3-channel light modulator that can be used in any

situation and with no matter which sound source, as it

requires no electrical connection with the power

amplifier.The kit includes an electret microphone of

very high sensitivity that is used to pick up the music

that will modulate the light.As there is no connection

between the unit and the amplifier, there is no danger

for your expensive Hi-Fi system. Separate sensitivity

control, channel. Power handling: 1200 Watts.

SUITABLE BOX 2014 ASSEMBLED UNIT 5014

P.S.

PCB

230VAC

54x112mm

1026

1037

RUNNING LIGHTS

An exciting light effect with 12 LEDs.The printed

circuit board is designed in such a way as to be

possible, by simply inserting 3 TRIACs in their

respective places, to use 220 V filament bulbs instead of

LEDs, making this kit suitable for professional

applications.The speed of rotation as well as its

direction can be easily adjusted. Ideal for parties,

DISCOs, shop-windows and eye-catching signs.

Consumption: 100 mA. Output power: 3x800 Watts.

SUITABLE BOX 2026 ASSEMBLED UNIT 5026

DISCO STROBO LIGHT

V 9-15 VDC

P.S. 1061

PCB 54x112mm

The best of all light effects, previously available only as

professional equipment for Discos, now available to

amateur constructors at a very reasonable price.A

very bright strobe that will give the illusion of

interrupted motion.The rhythm is variable and you can

add a second XENON tube to increase the light

output. Strobe frequency: 1-60 Hz.

P.S.

PCB

230VAC

60x68mm

SUITABLE BOX 2037 ASSEMBLED UNIT 5037

Internet site: http://www.smartkit.gr 29

LIGHT MODULATORS

1104

SWEET LITTLE HEART

A unique light effect with a heart-like shape.The heart

is made up of 20 LEDs that are turned on and off

periodically.This kit may be used to decorate a corner

of your personal room or living-room, the windscreen

of the car, a store, or even, it can be donated as a

token of some special feeling. Current consumption:

100mA. No adjustment is required.

P.S.

PCB

9VDC H

60x63mm

1132

SUPERLIGHT- 3CH. LIGHT EFFECT

This is a useful construction for light effects. It can

easily be connected with an amplifier from 1-100 Watt

or another audio equipment.Three optocouplers are

used to link this modulator with the audio source

isolating at the same time the two circuits completely.

It has three channels for low, mid and high frequencies.

Power: 600W/channel. Input voltage: 2,5-28V AF.

Current dissipation 4VA. Input resistance: 500Kohm.

P.S.

PCB

230VAC

102x112mm

1133

STEREO SOUND TO LIGHT MODULATOR

This is a useful circuit which is used to control one or

more lamps and make them follow the rhythm of the

music.Two optocouplers are used to link the

modulator to the sound source isolating at the same

time the two circuits completely. Maximum current 4A

per channel. Maximum output power: 800W per

channel. Input sensitivity: 2-60 Watts.

SUITABLE BOX 2133

P.S.

PCB

230VAC

55x64mm

1153

STAR LIGHT

An exciting light effect with 57 led’s which have been

placed in eight rows and they look like a star.The “starlight”

begins “growing” from the centre to its edges

and after that disappears.The speed of “growing” can

be easily adjusted.You can connect a second star light

or another light effect that you have constructed.There

are eight channels to connect the second star or other

effect. Ideal for the Christmas tree, parties,

shopwindows, end eye-catching signs.

30 Internet site: http://www.smartkit.gr

5VDC

P.S. 1169

PCB

120X127mm

LIGHT MODULATORS

1157

SPECIAL LIGHT EFFECTS UNIT

A unit which is ideal for the driving of various light

signs for shops. The signs may contain letters formed

by LEDs, in order to create messages like “MERRY

CHRISTMAS”,“SALE”,“SPECIAL OFFER” etc. It is also

possible to create decorative signs like stars and

hearts!

9-14VDC

P.S. 1063

PCB

62x83mm

70x86mm

1162

DOUBLE HEART FLASHER

A well-known light effect in a different version.Two

hearts formed by LEDs, simulate an electronic optical

heart beating. Suitable for the windscreen decoration,

room-corner or wherever your fantasy guides you.

Current dissipation: 50mA.

V 9-15VDC

P.S. 1061

PCB

72x74mm

1175

CHRISTMAS TREE WITH LEDs

Make your Christmas brighter by assembling this light

effect unit. It is an electronic Christmas tree with 19

LEDs which turn on/off successively and will be used

to decorate your home, your shop or your car.You can

offer it as a gift to your friends or you can send it as a

Christmas card.

P.S.

PCB

9VDC H

87x130mm

1176

JINGLE BELLS WITH LEDs

Two Christmas jingle bells with 24 LEDs which turn

on/off successively and will be used to decorate your

home, your shop or your car.You can offer it as a gift

to your friends or you can send it as a Christmas card.

It plays also your favorite Christmas songs

P.S.

PCB

9VDC H

85x120mm

Internet site: http://www.smartkit.gr 31

1059

1078

1119

1122

TELEPHONE

TELEPHONE AMPLIFIER

A very sensitive amplifier that will amplify the voice

through a telephone pick-up coil (included in the kit)

and will let you follow a telephone conversation

without having to hold the telephone receiver in your

ear. It is also very useful when more than one person

have to listen to what is said on the phone. Power out:

1W. Max. current: 120mA.

SUITABLE BOX 2059

PROTECTION FROM MALICIOUS CALLS

A simple and useful circuit that will ensure your

protection from malicious calls, with an easy and

certain way that you are able to change at any

moment.The heart of the circuit is the PIC

microproccessor 16C56, that cuts off the first rings

(adjustable from 3 to 12), thereby the caller will hang

up thinking that you’re absent.You are going to hear

the call after the rings that you chose to cut off.

TELEPHONE LINE RECORDING

A very clever device that will activate a cassette

recorder when the telephone receiver is lifted. It is

very useful for the recording of commercial orders

over the telephone, conversations, security etc. It

draws its power from the remote control line of the

cassette recorder, which should be a model which

works off at least 6VDC.

SUITABLE BOX 2119

TELEPHONE CALL RELAY

A simple device that can be used to give a signal or to

operate an electrical apparatus every time the

telephone rings.Very useful for noisy places, where a

P.S.

light signal or a siren can draw the attention to the

phone better than the telephone bell, or for cases

where the telephone is in such a place that cannot be

heard and you need a secondary bell. It does not

PCB 64x64mm

require any power supply and the relay contacts are

rated at 250V/2A.

SUITABLE BOX 2122

☎

32 Internet site: http://www.smartkit.gr

9-12VDC

P.S. 1061

PCB

43x69mm

9-12VDC

P.S. 1061

PCB

P.S.

PCB

☎

65x105mm

☎

40x56mm

☎

TELEPHONE

1125

1130

1155

PULSE TELEPHONE LOCK

A project that will help you control the use of your

telephone and keep your telephone bill low. It can be

connected on the telephone line and disable the

dialling beyond the 8th digit.Thus it is impossible for

anyone to make a long distance call unless you allow it.

It can also disable dialling from the 5th digit so it is

impossible to make anything but operator calls. It

draws its power from the telephone line.Very useful

for public telephones, in businesses, shops etc.

SUITABLE BOX 2125

TELEPHONE “BUG” DETECTOR

If your telephone has “bugs” this circuit may help you

“kill” them. It will warn you if somebody is eaves

dropping on your telephone line by means of some

device connected on your line.The circuit draws its

power from the telephone line and can be left on the

telephone line continuously, without fear of hampering

the normal use of the telephone.

TELEPHONE SCRAMBLER

The device is built around the FX224 IC. It can be used

in simplex or duplex mode and can be connected to

any kind of wireless telephone, CB or VHF transceiver.

The same kit can be used as a receiver and transmitter

as well.

P.S.

PCB 50x57mm

☎

P.S.

PCB 30x40mm

☎

V 12VDC

P.S. 1061

1167

TELEPHONE LINES PRIORITY SWITCH

It is well known that more than one telephone lines

exist in an office in our days. However, what will

happen if we want to connect a telephone voice

recorder device?. In a such case, you have to connect

many devices or the circuit which is suggested and

permits the connection of a fax, modem or an

answering device with more than one telephone lines.

Internet site: http://www.smartkit.gr 33

PCB

111x120mm

12VDC

P.S. 1061

PCB

☎

52x80mm

☎

1182

1185

TELEPHONE

MUSICAL HOLD ON

A very smart circuit for having music in the telephone,

when you put the caller in “hold”. It is a useful

alternative solution for telephone sets that don’t have

this option.The construction is based on an IC that

generates a known melody. It also gives you the ability

to record your own melody from a tape player or CD.

There is no need for power supply as it is connected in

parallel with the phone line.

TELEPHONE IN USE INDICATION

A simple, useful and cheap solution with no need for

external power supply, that shows you if the line is

busy. It can also show incoming calls without ringing.

Useful for old type telephones, but also for units put in

parallel to show if someone else is using the line.

P.S.

PCB

P.S.

57x72mm

☎

9VDC H

1186

1194

EIGHT CHANNEL REMOTE CONTROL BY TELEPHONE

A useful circuit that gives you the ability to control 8

different devices via telephone line from any distance.

Each channel has its relay and a LED indicating the

specific device activation.The circuit is based on the

microproccessor PIC16C57 that provides accuracy and

reliability. It is easy to program by the DTMF tones that

almost all of today’s telephone sets provide. It includes

matching transformer and plugs for connecting in the

telephone line.

READ/WRITE TELEPHONE NUMBER

A project that you will find very useful beside your

telephone. It has the ability to restore the last 84

dialed phone numbers consisting of 12 digits each.They

can be displayed in a 16 digits LCD display (included).

The unit has also an output for recording any

conversation in a common tape recorder.

PCB

30x61mm

☎

12VDC

P.S. 1061

PCB 126x134mm

☎

Coming soon!!!

34 Internet site: http://www.smartkit.gr

VU - METERS

1002

VU-METER WITH LEDs

It can be easily adapted to any amplifier or preamplifier

in a car or at home. It scores over conventional VU

METERS in many ways, as it gives a more accurate

reading, it has adjustable sensitivity and last but not

least it improves aesthetically the amplifier front panel!

It can be used with all the amplifiers and preamplifiers

of SMART KIT.

V 12-18VDC

P.S. 1061

PCB 45x117mm

1039

STEREO VU-METER

A project that will help you monitor easily and

accurately the output of your amplifier. Suitable for any

amplifier from 0.1 to 100 Watts RMS. It is a “must” for

every amplifier, especially if the Hi-Fi system is also

used for tape recordings.The kit includes the two

instruments.The whole circuit is small enough to be

fitted with no special difficulty in any existing amplifier

case.

V 12VDC

P.S. 1061

PCB 33x87mm

1067

STEREO VU-METER WITH LEDs

A very good VU-METER that can be used with any

STEREO amplifier. Suitable for all the amplifier projects

of SMART KIT, like the 1033, 1046, 1077, 1133 etc.

V 12VDC

P.S. 1061

PCB

78x165mm

1102

STEREO VU-METER WITH 14 LEDs

Another VU-METER from SMART KIT but this may be

the most advanced and the best looking of all. It has

been designed for STEREO amplifiers and uses 15

LEDs, placed in a straight line, 7 for each channel with

the LED in the centre used as an ON indicator.The

display is symmetrical, on either side of the central

LED which is always on. It works with any amplifier

from a few mW to 100 Watts. It can also be used in

the car.

Internet site: http://www.smartkit.gr 35

12VDC

P.S. 1061

PCB

48x171mm

1008

INSTRUMENTS

AF FUNCTION GENERATOR

An audio frequency function generator capable of

covering the frequency range between 20 Hz and 20

KHz. It produces sinusoidal, triangular (sawtooth) and

square waveforms. It can be used very well for

accurate adjustments in the laboratory. It has separate

level controls for each waveform shape and it can be

easily set to give exactly the same signal level for each

waveform at the same time.

P.S.

PCB

24VAC

24VAC/IA

65x120mm

1036

TRANSISTOR TESTER

This is a circuit that will help you sort the

TRANSISTORS you have in your laboratory, and will

also help you choose the best of them for your

projects. It will also show you if the TRANSISTOR is

PNP or NPN.The circuit can also be used to check

some types of diodes.The printed circuit board is small

and if you use a small box to put it in you will have a

convenient and portable TRANSISTOR tester.

SUITABLE BOX 2036

P.S.

PCB

9VDC H

35x43mm

1042

AF GENERATOR 250Hz - 16KHz

An economical signal generator that will produce a

square wave of up to 15 Volts amplitude.A very good

solution for the amateur’s lab.The frequency can be

varied between 250Hz and 16KHz. Building the kit is

very simple and the setting up is very easy.

Max.current: 50mA.

V 5-15VDC

P.S. 1061

PCB 35x44mm

1087

THYRISTOR - TRIAC TESTER

This simple circuit proves itself as one of the most

useful additions to your bench gear, as it will test

accurately THYRISTORs and TRIACs, by opening and

closing their gates and, at the same time, checking for

open and short circuits. No amateur or professional

laboratory should be without one. Max. current: 10mA.

V 9VDC H

P.S.

PCB 43x54mm

SUITABLE BOX 2087

36 Internet site: http://www.smartkit.gr

INSTRUMENTS

1098

DIGITAL THERMOMETER WITH LCD

A digital thermometer with liquid crystal display

suitable for the measurement of temperatures from

-30 to +125C. It is built around the 7106 ADC IC.

It has a very low power consumption, approximately

1.5mA, which makes possible the use of the

thermometer with a small 9V battery that will last for

many hours of continuous use. Max. current:10A.

P.S.

PCB

9VDC H

61x69mm

1099

DIGITAL VOLTMETER WITH LCD DISPLAY

A digital voltmeter with LCD display, suitable for

measuring voltages between 0 and +199 Volts.The well

known 7106 integrated circuit is used for this

purpose.There is a low power consumption and the

instrument can therefore operate for hours from a

common 9 Volt battery. Its constructional simplicity and

its reliability make this instrument ideal for use as a

PANEL METER in power supply units.

P.S.

PCB

9VDC H

60x65mm

1103

LED POWER METER

An instrument with a LED display that can be

connected to your speakers to monitor the active

power output of your amplifier.The circuit does not

require a power supply as it will draw its power from

the output of the amplifier.A must for any Hi-Fi

enthusiast as it is inexpensive, accurate and nice to

look at! Suitable for amplifiers having a power output

of up to 100 Watts.

P.S.

PCB

31x45mm

1105

HUMIDITY METER WITH LCD

A digital humidity meter with liquid crystal display

suitable to measure the relative humidity from

10-90 %.The circuit is built around a special humidity

sensor made by PHILIPS, and nine other integrated

circuits.The kit has two PCB’s –one for the main

circuit and another for the liquid crystal display– which

can placed separately.

P.S.

PCB

9VDC H

76x100mm

54x63mm

Internet site: http://www.smartkit.gr 37

1110

INSTRUMENTS

OSCILLOSCOPE COMPONENT TESTER

With this circuit you will be able to increase the

testing possibilities of your oscilloscope with a feature

found only in the most expensive models of the

market. Using this circuit you will be able to test all the

electronic components like: Diodes, Zeners,Transistors,

Capacitors, Coils etc.The size of the board is small

enough to fit easily in the case of any oscilloscope.The

kit comes complete with the mains transformer.

P.S.

PCB

8VAC

8VAC/IA

40x44mm

1111

LOGIC PROBE

A must for those who work with digital circuits. It will

detect and display logic states of “1” and “0” by lighting

respective LEDs and will also give an indication with a

third LED if it detects a pulse train. Suitable for TTL

and CMOS circuits. Max. current: 20mA.

P.S.

PCB

9VDC H

20x80mm

1116

SIGNAL INJECTOR - SIGNAL TRACER

A very useful instrument for those who work in

electronics, professionals and amateurs alike. It is

indispensable for the checking of amplifiers,

preamplifiers, receivers and other electronic circuits. It

is easy to use and can also be used as a continuity

tester, for the testing of cables, PCB tracks etc. Max.

Current: 50mA.

P.S.

PCB

9VDC H

40x91mm

1137

DIGITAL VOLTMETER WITH LED DISPLAYS

A digital panel meter with four led displays for your

laboratory. It uses the well known ICL 7106 analogue

to digital converter IC.This integrated circuit

incorporates in a 40 pin package all the circuitry

necessary to translate an analogue quantity as voltage

to digital information and also has the necessary driver

circuit for the four led displays. Current drawn 200mA

max. Measuring range: 0-200 Volts .

P.S.

PCB

±5VDC

45x83mm

38 Internet site: http://www.smartkit.gr

INSTRUMENTS

1142

DIGITAL VOLTMETER WITH LED DISPLAYS

A digital panel meter with four led displays for your

laboratory. It measures 0 to 200 VDC in four ranges. 0-

200mV, 0-2V, 0-20V, 0-200V. Over range indication. Max

current dissipation: 220mA.

V 8-15VDC

P.S. 1061

PCB

70x121mm

33x77mm

1145

TVI FILTER

It is a high-pass filter that allows any frequency higher

than 62 MHz to pass. It can be connected to any radio

or TV receiver to offer you a perfect reception without

interference.

P.S.

PCB

40x49mm

1152

FREQUENCY METER 10Hz - 1MHz

A reliable frequency meter for the laboratory. It counts

with great accuracy from 1Hz to 1MHz covering the

frequency areas of all the trade generators .The input

circuit does not cause power drop to a generator that

will be connected on its input or it will not also cause

change of its frequency.The current dissipation is

160mA. Digital readout of 5 digits, also feeding voltage

reverse.

12VDC

P.S. 1061

PCB

70x121mm

33x77mm

BLACK

FIRST

DIGIT

–

SECOND

DIGIT

MULTIPLIER

x 1

TOLLERANCE

10% SILVER

RESISTORS

BROWN

x 10

GOLD

RED

x 100

SECOND DIGIT

MULTIPLIER

ORANGE

YELLOW

x 1.000

x 10.000

FIRST DIGIT

TOLLERANCE

GREEN

x 100.000

BLUE

x 1.000.000

VIOLET

Ö 10

GREY

WHITE

Internet site: http://www.smartkit.gr 39

ALARMS - SIRENS

1003

ELECTRONIC SIREN 5 W

A powerful electronic siren with an impressive 5 Watt

power output, suitable for alarm systems, cars,

motorbikes etc. It consists of a multivibrator with two

transistors and the amplifier stage consisting of another

two transistors. Output power: 5 Watts. Frequency

tone: 1.2 KHz.

V 6-12VDC

P.S. 1063

PCB 37x71mm

1029

4-SOUNDs ELECTRONIC SIREN

An electronic siren with many applications. One of the

output sounds is a single tone, while the others are

polyphonic resembling the sounds of FBI, POLICE, or

AMBULANCE sirens. In the output can be connected a

loudspeaker or a “horn” speaker of 8-25Ohm

impedance. Ideal for alarm systems in every situation.

Output power: 8W.

V 9-15VDC

P.S. 1063

PCB 45x81mm

1049

ULTRASONIC RADAR

A circuit that can be used as a movement detector in

any closed space. It can be used as a sensor for any

alarm system.The circuit operates off 12VDC so it is

ideal for use in the car.The useful range of the radar is

about 10 meters.

V 12VDC

P.S. 1061

PCB

50x88mm

1094

HOME/SHOP ALARM SYSTEM

A very good alarm system for houses and shops with

professional specifications. It has adjustable entry and

exit times and variable alarm duration. It has four

different branches (2 delayed and 2 with immediate

alarm) with open or closed loop. It also has a battery

backup circuit which uses Lead-Acid accumulators and

charges them automatically.

V 10VAC

P.S.

T 10VAC/2A

PCB 140x140mm

40 Internet site: http://www.smartkit.gr

ALARMS - SIRENS

1114

ELECTRONIC LOCK

An electronic combination lock with 9 keys, suitable

for alarm systems, security devices etc. in houses, cars,

businesses etc. It is programmable and the keypad uses

touch-switches. It can be easily connected to any

existing alarm system. In the output it has a relay with

250V/2A contacts. Quiescent current: 2mA. Max.

current: 50 mA.

P.S.

PCB

9VDC H

78x88mm

1128

POWER FLASHER 12VDC

A power flasher suitable for alarms, warning devices,

car HAZARD lights, signalling devices etc. It uses a

power transistor to drive the lamp and solid state

circuitry to provide the necessary pulses which turn

the lamp on and off. Lamp power: up to 20 Watts.

V 12VDC

P.S. 1161

PCB

46x100mm

1140

1150

5 ZONE ALARM SYSTEM

The state -of- the art in security systems.An integrated

security system that consists of 5 independent zones.

One delay zone,Three direct zones and one for 24

hours protection.The entry and exit time are

adjustable from 15 to 60 seconds and you have also

the ability to adjust the alarm time from 30 seconds to

2 minutes.All the zones are terminated in a 4,7 KOhm

resistor for shortcut protection.

The system can also support a 12V/7Ah lid battery in

order to be independent even in black out.

PORTABLE ALARM

A small alarm that may be installed anywhere and

protect all sorts of things.The smallest possible

movement is capable of activating the alarm which

sounds until the owner comes to disarm it. Suitable to

protect anything that may be left unattended for a little

while and needs to be protected, like handbags,

suitcases, open drawers, bicycles, trolleys etc.The kit

includes a mercury switch, and the buzzer.

P.S.

PCB

P.S.

PCB

17VAC

17VAC/2A

120x165mm

9VDC H

20x51mm

Internet site: http://www.smartkit.gr 41

ALARMS - SIRENS

1177

PROGRAMMABLE ELECTRONIC LOCK

A simple and easy to use circuit that enables you to

improve security by controlling access to prohibited

areas.The circuit is based on the microproccessor

PIC16C54 that provides accuracy and reliability with

1.000.000 different codes and memory back up. Easy

programming by the user, with the ability of having one

master and six low level access codes.The appliance

activates an alarm system after 3 consecutive attempts

to input wrong code numbers.

V 12-14VDC

P.S. 1061

PCB 55x85mm

1184

EMERGENCY LIGHT

A useful and simple circuit for having light in cases of

black out. If you’re afraid of darkness, waiting for the

power to come back, SMART is offering you this circuit

of automatic control for emergency 12V lights with

maximum power 50W.The circuit also provides a

12V/6Ah battery charger.The Mb battery is necessary

when the lights go out and is used in homes and public

places. It is also obligated by the low for restaurants,

hotels and shops to show the emergency exits

maximum load 50W.

P.S.

PCB

15VAC

15VAC/1A

55x66mm

1197

2 ZONE ALARM SYSTEM

The best value for money security system.A security

system that consists of 2 independent zones. One

delay and one direct zone.The entry and exit time as

well as the alarm time are standard.

Both zones have shortcut protection.

The system can also support a 12V/3Ah lid battery in

order to be independent even in black out.

P.S.

PCB

17VAC

17VAC/IA

80x95mm

BLACK

FIRST

DIGIT

–

SECOND

DIGIT

MULTIPLIER TOLLERANCE VOLTAGE

x 1

± 20%

250 V

CAPACITORS

BROWN

x 10

±1%

400 V

RED

x 100

±2%

630 V

OPERATING VOLTAGE

ORANGE

YELLOW

GREEN

BLUE

VIOLET

x 1.000

x 10.000

x 100.000

±5%

± 10%

FIRST DIGIT

SECOND DIGIT

MULTIPLIER

TOLLERANCE

GREY

WHITE

42 Internet site: http://www.smartkit.gr

CONVERTERS - CHARGERS

1027

Ni-Cad BATTERY CHARGER

Using this circuit you can easily charge any Ni-Cad

battery from 50 to 400 mA charging current.You can

easily charge more than one battery at a time.The

charging current can be selected according to the

battery you are going to charge. It is absolutely safe for

your expensive rechargeable batteries. Charging

current: 50-400 mA (selectable).

P.S.

PCB

12-24VAC

2x12VAC/0,5A

56x128mm

1065

INVERTER 12VDC - 220VAC 50 Hz

A useful project for those who like camping and

caravaning but they don’t like leaving modern facilities

behind. It can supply loads of up to 100 Watts.The kit

includes the heatsinks for the power transistors.

The output frequency is 50Hz.

P.S.

PCB

12VDC

2x10VAC/20A

48x72mm

1069

12VDC FLUORESCENCE

This circuit is useful for the outdoors and camping. It is

powered from a car battery and can light any

fluorescent lamp in 8-40 watt size.The special design of

the circuit ensures the maximum illumination without

causing any spikes in the mains. Dissipation Current:

1.3A(max) Frequency: 58KHz.

P.S.

PCB

12-14VDC

46x162mm

1085

DC CONVERTER 12 TO 6/7.5/9V

With this circuit you will be able to use any small

radio, cassette recorder,WALKMAN etc. in your car

without having to use batteries, because its operating

voltage is lower than 12VDC. It can also be used as a

power supply with 3 different, selectable, output

voltages with a single 12V transformer. Output current:

800mA. Output voltage: 6, 7.5, 9VDC.

P.S.

PCB

12VDC

40x85mm

Internet site: http://www.smartkit.gr 43

POWER SUPPLIES

1007

1056

POWER SUPPLY 3-30V/2.5A

This is a variable, stabilised power supply for

laboratory use. It is very reliable and therefore suitable

for professional or amateur applications. No laboratory

should be without one! It is short circuit protected and

the kit comes complete with a large heatsink. It uses

the well known VOLTAGE REGULATOR IC LM-723

and two transistors.

SUITABLE BOX 2007

STABILISED POWER SUPPLY 8-20V 8A

A heavy duty power supply capable of powering even

the most power demanding circuits in your laboratory

with pure, clean, stable DC current. Up to 150 Watts

output power.The circuit incorporates special

protection filters against RF from transmitters and

LINEAR amplifiers, making it ideal for such applications.

The ideal power supply for SMART KITs 1021, 1031

and 1017.The kit comes complete with heatsinks.

P.S.

PCB

P.S.

PCB

24 VAC

24VAC/3A

55x112mm

24 VAC

24VAC/8A

67x155mm

1060

POWER SUPPLY ±40V/8A

The ideal power supply for amplifiers like SMART KIT

1033 or 1077. If the amplifier is used for a MONO

system, a 2x28VAC/4A transformer is sufficient. If you

plan to supply a stereo amplifier, the transformer

should have an 8A rating.

P.S.

PCB

2x28 VAC

2x28VAC/8A

44x69mm

1061

STABILISED POWER SUPPLY 12V 0.5A

One of the most popular power supplies in our range

of kits. It only requires a 12VAC 0.5A transformer. It

uses a 7812 VOLTAGE REGULATOR IC. It is the ideal

power supply for SMART KITs 1002, 1004, 1005, 1009,

1012, 1013, 1016, 1020, 1025, 1026, 1035, 1039, 1042,

1048, 1049, 1055, 1057, 1059, 1067, 1070, 1071, 1080,

1083, 1084, 1112, 1116, 1124, and for any other

application where you may need a stabilised 12VDC

voltage of up to 500mA.

P.S.

PCB

12 VAC

12VAC/0,5A

36x75mm

44 Internet site: http://www.smartkit.gr

POWER SUPPLIES

1062

TTLs STABILISED POWER SUPPLY

A stabilised power supply suitable for projects with

TTL integrated circuits. It uses the 7805 voltage

regulator IC.

P.S.

PCB

9 VAC

9VAC/0,5A

36x75mm

1063

POWER SUPPLY 12V/2A

A general purpose power supply for those cases where

a cheap and powerful 12V supply is required. It is the

right supply for SMART KIT 1003, 1029, 1040, 1041,

1046, 1048, 1128.

P.S.

PCB

12 VAC

12VAC/2A

53x59mm

1064

STABILISED POWER SUPPLY ±12V/0.5A

A symmetrical stabilised power supply for many

different applications.With a different wiring can also

supply 24 VDC.

P.S.

PCB

2x12 VAC

2x12VAC/0,5A

44x70mm

1068

POWER SUPPLY 18V/0.5A

A general purpose stabilised power supply with an

output of 18V 0.5A. It uses the 7818 voltage regulator

IC. Suitable for SMART KIT 1023, 1024, 1028, 1038,

1052.

P.S.

PCB

18 VAC

18VAC/0,5A

36x75mm

Internet site: http://www.smartkit.gr 45

POWER SUPPLIES

1096

STABILISED POWER SUPPLY 2-30VDC/5A CE

An easy to build, powerful, stabilised power supply with

variable output voltage from 2 to 30 Volts and a

maximum power rating of 5A. It covers almost all the

voltages needed in the electronic laboratory.The kit

comes complete with a large heatsink for the power

transistors. It uses the well known LM317 voltage

regulator. Output voltage: 2-30V Max. current: 5A.

SUITABLE BOX 2096

NEW DESIGN

V 24 VAC

P.S.

T 24VAC/5A

PCB 77x150mm

1138

STABILISED POWER SUPPLY 0-30VDC/3A

An easy to build, powerful, stabilised power supply with

variable output voltage from 0 to 30 Volts and a

maximum power rating of 3A. It covers almost all the

voltages needed in the electronic laboratory.The kit

comes complete with a large heatsink for the power

transistor. It uses three op-amps and four transistors.

P.S.

PCB

24 VAC

24VAC/3A

85x123mm

SUITABLE BOX 2138

1169

POWER SUPPLY 3- 4.5-6- 9-12VDC / 1.5A CE

This is a universal stabilised power supply. Depending

on the transformer that is used in the input it gives the

related DC output at a power rating of up to 1.5A. It

can be used as power supply for many electronic

devices such as radios, tape recorders, portable TV sets

etc.

NEW DESIGN

V 12 VAC

P.S.

T 12VAC/1,5A

PCB 85x123mm

1171

RFI POWER SUPPLY 12-14V/3A

The RF devices (transmitters, receivers) demand special

power supplies in order to avoid many serious

problems (noise, overheating, standing waves, e.t.c.).

This power supply does not permit the passing of high

frequencies and delivers a voltage of 12-14VDC and a

current of 3A.The circuit includes thermal protection,

short circuit protection and electronic stabilisation.

P.S.

PCB

18 VAC

18VAC/3A

72x82mm

46 Internet site: http://www.smartkit.gr

VARIOUS

1015

ELECTRONIC MOSQUITO REPELLER

A modern and clean way to keep mosquitoes away

during summer nights. It is a multivibrator with an

output of 5 KHz.This frequency makes mosquitoes go

away.The circuit has very low power consumption and

the battery will last for about a month of continuous

use.Max. current: 0.001A. Output frequency: 5 KHz.

NEW DESIGN

V 1,5VDCH

P.S.

PCB 20x30mm

1022

1075

METAL DETECTOR

A metal detector suitable for locating pipes and cables

in walls, floors etc. Its range reaches 15-20 cm.The kit

comes complete with a handy case.You may not find

lost treasures with this little device (unless they are

not buried very deep!) but it will certainly help you

locate pipes and mains wirings before making holes on

the wall or the floor avoiding accidents and a lot of

inconvenience.

SUITABLE BOX 2022

ELECTRONIC DICE WITH LEDs

The modern way to play games that require the use of

dice.The throws are shown by 7 LEDs arranged in

such a way as to remind the faces of real dice. Power

consumption is very low and a small 9V battery will

last for a long time. Max. current: 100mA.

P.S.

PCB

P.S.

PCB

9 VDC H

39x64mm

9 VDC H

21x78mm

SUITABLE BOX 2075

1089

LED FLASHER - 555 TESTER

A simple and useful project when you need a flasher

like in alarm systems, warning devices, indicators,

signalling, toys etc.The circuit uses the well known

TIMER IC 555 and besides all its other applications it

can be used as a tester for the 555. Max. current:

30mA.

V 12VDC

P.S. 1061

PCB 35x49mm

Internet site: http://www.smartkit.gr 47

1090

STRESS METER

VARIOUS

This circuit can form the basis for a game which apart

from giving you hours of fun will also show you how

nervous is the player. As a game it requires nerves of

steel dexterity and ...great patience. Great fun for

family gatherings, parties etc.The circuit can also be

used as a BUZZER in alarms and warning systems.

Output: 50mW. Max. current: 60mA.

P.S.

PCB

9 VDC H

42x61mm

1101

1107

DOLLAR TESTER

It is a common secret that the market is full of fake

USA dollars.This kit will help you to distinguish the

forged notes from the real ones by detecting the only

feature that is impossible to copy:The special magnetic

ink which is used to print some parts of the note.The

production of this ink is strictly controlled and it is

impossible for forgers to get hold of it.Very useful for

exchange bureaus, tourist businesses and shops.

SUITABLE BOX 2101

ELECTRONIC 1-X-2

There are many different ways and systems to bet in

the pools.We propose an altogether different system

that will use electronics, statistics and luck to give you

an electronic “prediction” of the expected results of

the football matches. Max current: 40mA.

P.S.

PCB

P.S.

PCB

9 VDC H

32x42mm

9 VDC H

54x66mm

SUITABLE BOX 2107

1123

MORSE CODE GENERATOR

A simple and useful circuit for those who wish to learn

the Morse code.The output frequency can be adjusted

anywhere between 250Hz and 16KHz. It is a very easy

project suitable even for beginners. It only requires a

Morse Keyer and a miniature speaker. Maximum

current: 15mA. Output power: 100mW.

V 9 VDC H

P.S.

PCB 37x45mm

SUITABLE BOX 2123

48 Internet site: http://www.smartkit.gr

VARIOUS

1124

ELECTRONIC BELL

An electronic bell suitable for use at home as a

doorbell, as a second bell for the telephone (in

combination with SMART KIT 1122), or in any other

application that may require a sound signal. It can also

be used together with a sensor to give a warning that

somebody is approaching the entrance of a house. Max.

current: 50mA.

SUITABLE BOX 2124

V 9-12VDC

P.S. 1061

PCB 41x71mm

1129

1156

NEGATIVE ION GENERATOR

The use of this circuit will greatly benefit your health

and will give you a feeling of comfort. It helps cleaning

the air from dust, pollen, smoke and pollution.The

increased concentration of negative ions in the air

makes it feel fresher, brings a feeling of well being, helps

in reducing stress and effectively reduces the severity

of symptoms in some respiratory troubles. It is also

beneficial to animals and plants. Current: 100mA.

SUITABLE BOX: 2129

LOTTO - FORTUNE MACHINE

A modern way to find the six lucky numbers.This

circuit is a pseudo random number generator which

can give a number from 1 to 49 by the push-button.

The circuit can work with more or less than 49

numbers depending on the country that it concerns.

Two led displays show the lucky number.

P.S.

PCB

P.S.

PCB

230VAC

120x132

9 VDC H

56x61mm

1191

ELECTRONIC PUT’N TAKE

The well known game that we all play on new year’s

eve in its electronic edition.All the indications:“put 1,

put 2, put everyone, take 1, take 2and tak’em all” are

displayed.The circuit also produces a tone from a small

loudspeaker, that sounds like when you play the original

game. Now you have the ability to play this old game

with a new electronic way.

P.S.

PCB

9 VDC H

58x70mm

Internet site: http://www.smartkit.gr 49

VARIOUS - DIMMERS

1192

1195

1030

ELECTRONIC ROULETTE

The simplest and most entertaining way to play

roulette and have fun with your friends. By gambling on

this new kit of Smart Kit Electronics, you’ll be

introduced to the magic world of electronics and enjoy

many games with the electronic roulette which

includes simulation of a spinning ball, sound and works

with a microcontroller which guarantee reliability and

transparency.All you have to put in, is the will to have

some serious fun.

MULTI TONE CHIME

A simple kit for your house or office. It replaces your

old door bell at a small cost.The circuit is based on the

SAE800 that can produce up to three different tones

similar the airports’s announcement.The circuit has

small dimensions and can be used with the already

existing button. Power supply 9-12 VAC.

LIGHT DIMMER

Coming soon!!!

A dimmer with many applications at home, laboratory,

office, etc. It can be used to control the lights in a

bedroom, children’s rooms, parties etc.The circuit is

simple and the small size of the board makes it

possible to fit almost everywhere. Load: 800 Watts.

P.S.

PCB

P.S.

PCB

9 VDC H

123x126mm

230VAC

46x57mm

1051

TOUCH DIMMER

This is a very modern dimmer that only needs a light

touch to operate.A light tap on its sensor will turn the

light ON or OFF.A longer touch will either increase or

decrease the light level.The circuit incorporates a

memory and switches the light on at exactly the same

level it was before switching it off.Very safe and stable

operation. Max. current: 3.5 A.

P.S.

PCB

230VAC

46x65mm

32x39mm

50 Internet site: http://www.smartkit.gr

DIMMERS

1074

DRILL SPEED CONTROLLER

A well thought project that will let you adjust the

speed of your electric drill according to the job at

hand. Suitable for drills of up to 700 Watts.

P.S.

230VAC

PCB

48x65mm

SUITABLE BOX: 2074

1134

AUTOMATIC DIMMER

It is a circuit that adjusts the lighting of a room

according to the environment lighting.The more the

outside lighting lows down the more the room lighting

raises and vice versa, thanks to a sensitive

photoresistor.The circuit is used to poultry-farming,

design studios as well as child room.

P.S.

PCB

230VAC

80x115mm

1139

MINI DRILL SPEED CONTROLLER

An easy to build stabilised special power supply for all

the hand mini drills.A useful project that lets you

adjust the speed of your mini drill according to the job

at hand.The speed is not affected by the hardness of

the material you drill.The output voltage and sensitivity

can be adjusted by two potentiometers.The circuit is

built around the well known regulator IC L200. Output

voltage: 4-26VDC. Output current: 3-5A.

P.S.

PCB

20VAC

20VAC/3A

50x100mm

TRIAC LED REGULATOR DIODE

TRANSISTOR

TOP

VIEW

BOTTOM

VIEW

8 5 14 8 16

1 4 1 7 1 8

Internet site: http://www.smartkit.gr 51

Computer Aplication

1164

1196

8CH TIMER CONTROLLED BY P.C.

Using this Kit you can control 8 devices.The kit is

connected to the serial port of your computer and

defines when will turn on or off each one of the 8

devices. For example you can turn on/off the lights, the

air conditioning or the alarm at the desired time.There

are 3 options - manual, periodic, automatic - for the

handling of the Kit. Power handling up to 500 Watt

/channel.The software is also included in the same

package.

ADC COMPUTER INTERFACE

A circuit that will expand your horizons for more

efficiency in your PC. It is about an A/D converter

build around the ADC0804.The circuit is provided with

the software for best processing from the PC and is

connected to the parallel port giving you by this

connection three digital outputs. It can also coopertate

with microcontrollers. Power supply 5 VDC.

Coming soon!!!

USEFUL INFORMATION

V 12 VDC

P.S. 1061

PCB 109x130mm

Looking at the catalogue you will notice the existence of

the following signs:

The meaning of each of the signs is explained in the

following lines:

The kit has the CE approval accdording to the

EC regulations (European Directive 89/336/EEC).

The kit operates/produce 220V or a High

Voltage.Therefore must be constructed by skilled

technicians following safety standard as described by

international specs and regulations.

The kit transmits radio frequencies.The operation

and use of such devices may be controlled by regulations

that differ from country to country.The compliance with

the corresponding legislation of each country is obvious,

The kit must be connected to the network of

PTT.The operation and the use of such

devices may differ from country to country.The

compliance to the correspponding legislation of each

country is obvious.

Beside each kit you will find useful information

quick form.There you can see at a glance the

required voltage (V), the suitable kit to use as a

power supply (P.S.), the required transformer (T)

and the PCB dimensions (PCB).

Smart kits are sold as stand alone training kits. If they are used as parts of a larger assembly causing a damage, our

company assumes no responsibility.

52 Internet site: http://www.smartkit.gr

Smart Kit catalogue (En)

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