615611 Electronics Workshop 2 Manual - Thames & Kosmos

The connection pins are used to connect the two consoles to one another . To do that, insert the
pins into the dovetail-shaped guides along the joint between the two consoles (Assembly Image
1) .
The loudspeaker and the galvanometer are each mounted in console 2 with one screw and one
eyelet (Assembly Image 7) .
The galvanometer works with a rotating mounted coil, so it is a moving coil galvanometer . The
C C
more current that flows through the coil, the farther the needle moves . When HS it is all C HSC
the way to
the right, 100 µA is flowing through the coil! The galvanometer is very sensitive . Please do not
connect it directly to a battery, or it could be destroyed!
M N
The speaker uses a coil and a membrane to convert TF
D
C
TF electrical signals into mechanical vibrations,
R C
Ge
R
Ge
TF
or sound waves, which you can hear .
TF
EP
A
R
E C
Speaker
Speaker
terminal
terminal
wires
wires
connected
connected
to
to
contact
contact
clips
clips
M
M
and
and
N
N
K K
SP E
SP E
+
C
C
EP TFEP
TF
E
E
C
C
V C
+
C
+
A AMP A AMP EP EP
–
E
E
E
TF
TF
A
D E F
The earphone converts electrical signals into audible F sounds with the help of a coil and a
metallic membrane D
V
+ . In that process, the membrane is more less strongly or more V P or less quickly
Ge +
Ge
+ Ta Ta
attracted by the C
+
C coil depending on the signal, just like with an electromagnet . Whenever A AMP we
A
produce sounds K or listen to the radio, Potentiometer we will terminal be using wires connected the earphone . AMP –
–
to contact clips D, E, and F
E
E
LED LED 1 1
A A
A
A
K
K
D
D
Ge
Ge
LED
B C
p
n
p
Photo E E E E
Assembly Circuit diagram symbol
B C
n
p
n
E E
B C
p
n
p
B C
n
p
n
E E
A K A K
IR-LED IR-LED
Speaker terminal wires
connected to contact clips M and N
AMP
E
–
R
A M N
C CK
+
+
A
Ta
Ta
A DA E KF
D E FK
A
DSi
K
E E E E
V
+
A A K K
Potentiometer
Potentiometer
terminal
terminal
wires
wires
connected
connected
to
to
contact
contact
clips D, E, and F
B Bclips C D, CE,
and F
–
DGe DGe M N
A A K K
E
AMP
AMP
–
E
–
K L
R
Galvanometer Galvanometer terminal wires terminal wires
connected to connected contact clips to contact K and Lclips
K and L
LED 3
–
LED LED 2 2
A BA CB
C
SP
+
R R
Bag 2 with small parts
001 006
Connection pins
4 pieces
Screws
2 pieces
Eyelets
2 pieces
Galvanometer
001 010
– Variable capacitor Variable terminal capacitor wiresterminal
wires
B
connected to connected contact clips to A, contact B, and clips C A, B, and C
+ +
LED C
A A
C
D
C
P
P LED LED
K K
C C
B
A
B
K
D
Si
E
T
E
T
The 10-kilohm potentiometer is an adjustable resistor . You can use a slider on a track made of
Ta
resistant material to select any desired level of resistance between 0 and 10 kilohms . The 10-ki-
EP
lohm potentiometer EP has “10 k” printed on it .
A
A
DSi
A
DSi
A
K
K
V
V
+
+
K L
LED 3
A K
220 kΩ
A
K
NTC
+
–
LED
A A C C
A
A
220 kΩ
A
K
D
NTC
6
1
DGe DGe
A A K
K
A B C
2
EP
4 3
6 1
B
A B C
Speaker
001 EP003
D ED FE
F
+
+ HS HS
X
Potentiometer X terminal terminal wires wires connected
LED to contact to 3 –
3
contact – clips clips D, E, D, and E, and F F
A K
Earphone
042 056
Speaker Speaker terminal terminal wires wires B
connected to contact to contact clips clips M and M and N N
1
2
5
6
7
A K
IR-LED
B C
p
LED p
LED
3
3 n
p
n
p
A
AE K
E K DSi E DSi
A A
A
A
K
K
IR-LED
IR-LED
B C
B 324 C
p
Potentiometer n p
1
K K
1
2
3
4
14 14
13 13
12 12
11 11
10 10
9
8
IN
PCO
+
+
A C A C
M NM
N
+ HS
X
EP –
AMP
10 kilohms
001 004
OUT
PLL
VCO
E
AMP
–
+
TF TF
E E C C
E
–
p n
p
E E
E E
–
A
A
–
VCI
G HG IH
I
R
5
V
V
Potentiometer terminal terminal wires wires connected
to contact to contact clips clips G, H, G, and H, and I I
+
1
1
2
2
3
3
4
4
5
5
6
6
7
7
324 324
+
14
14
13
13
12
12
11
11
10
10
9
9
8
8
IN
IN
PCO
PCO
E
6
C
E
4 3
+
+
2
B
B
A
OUT
OUT
PLL
PLL
VCO
VCO
E
D Ge
1
C
E
K
6
4
–
32
VCI
VCI
–
EP
R
R
A
D Ge
10 mF
100 nF
220 kΩ
K
Spe
connected
4
3
AMP
Potent
connected