T EVIS i - AmericanRadioHistory.Com

Mod.loied or
nwdc kited RF output.
400 cycle sine wave
output.
rt
.w ! .,
Step attenuated RF of ut.
6 to 1 vernier dial ratio.
Turret mounted coil subassembly.
Pre -calibrated and adjusted
coils.
Hartley RF oscillator circuit.
Colpitts oscillator 400 cycle
sine wave output.
Modulated or unmodulated
RF output.
Frequency coverage es fundamentals
160 kc to 50 megacycles
in five ranges. 51 megacycles
to 150 megacycles on
calibrated harmonics.
RF output in excess of 100,-
000 microvolts.
Audio output 11/2 to 2 volts.
AC transformer operated.
Professionally styled cabinet.
Infra red baked enamel
panel.
The new HEATHKIT Model SG -7 SIGNAL
GENERATOR vasily fulfills requirements for a
controllable, modulated or unmodulated source
of variable freq iency. A convenient 400 cycle
sine wave outpu: is available for audio work. All RF oscillator coils are precision wound and
adjusted to calibration before shipment thereby assuring maximum accuracy. The coils, band
switch and tuning condenser all mount as a turret assembly so as to offer the advantage of
short wiring leads and easy mounting of parts. The RF output circuit is of the low impedance
type obtained by the use of cathode coupling to the output jacks. The level of RF output is
varied by means of the RF step and RF output control. Use the HEATHKIT SG -7 as an RF
signal source modulated or unmodulated for radio repair, laboratory work, experimental
testing, 400 cycl: sine wave audio testing, checking RF stages, alignment of both AM and FM
IF stages, marke generator for TV alignment, etc. The kit is transformer operated and utilizes
miniature tubes for ease in handling high frequency. Panel jacks and a convenient switching
system permit ei:her external or internal modulation. The entire kit is supplied complete with
tubes and all ne:essary material as well as a detailed step by step instruction manual for the
assembly and operation of the instrument.
seat ea INTERMODULATION
ANALYZER KIT
MODEL IM-1
SHIPPING WT.
18 LBS
$3950
The HEATHKIT
MODEL IM -I is an
extremely versatile
instrument specifically'
designed for measuring
the degr_e of interaction
between two
signals caused by a specific piece of apparatus. or a chain of equipment.
It is primarily intended for tests of audio equip.nent but
may be used in other applications such as making tests of microphones,
records. recording equipment, phonograph picl:ups and
loud speakers. Use it for checking tape or disc records igs, as a
sensitive AC voltmeter, as a high pass noise meter for adjusting
tape bias, cutting needle pitch or other applications. High and
low test frequency source, intermodulation section, power supply
and AC voltmeter all in one complete unit. Percent intermodulation
is directly read on three calibrated ranges, 30 %ó, 10 %n and
3ó full scale. Both 4 to l and 1 to I ratios of low to high frequencies
easily set up. At this low kit price YOU can enjoy the
benefits of Intermodulation analysis for accur.om audio interpretations.
ñieetWe t LABORATORY REGULATED
POWER SUPPLY KIT
MODEL PS -2
SHIPPING
WT. 20 LBS.
$2950
New HEATHKIT LAB-
ORATORY POWER
SUPPLY provides continuously
variable regulated
DC voltage output
from IGO volts to 100 volts depending on load. Panel terminals
supply separate 6.3 V. AC supply at 4 amperes for filament circuits.
A 31/2" plastic cased panel mounted meter provides accurate
metered output for either voltage of current measurements. Exceptionally
low ripple content of .O12$ó admirably qualifies the
HEATHKIT LABORATORY POWER SUPPLY for high gain
audio applications. Ideal for laboratory work requiring a reference
voltage for meter calibration or for plotting tube characteristics.
In service work, it can be used as a separate variable voltage supply
to determine the desirable operating voltage in a specific circuit.
Use it as a DC substitution voltage in trouble shooting TV circuits
exhibiting symptoms of extraneous undesirable components in
plate supply circuits. Entire kit, including all 5 tubes now available
at this low price.
II011 G.
10(11 IRff11AYIONAI (OM
I. .p5 U.
NOW YORK CITY M)
April, 1953
... BENTON iHARBOR 15, MICHIGAN
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