T EVIS i - AmericanRadioHistory.Com
T EVIS i - AmericanRadioHistory.Com
T EVIS i - AmericanRadioHistory.Com
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Indicates frequency<br />
of energized circuits.<br />
CONVENI<br />
TIndicates frequency<br />
of de.energized<br />
tuned circuits.<br />
<strong>Com</strong>plete unit easily<br />
held and operated<br />
with one hand.<br />
New GRID DIP METER<br />
with assembled calibrated<br />
coils.<br />
Uses quality Simpson 500<br />
microampere meter.<br />
One hand operation, extremely<br />
compact. Only 212"<br />
wide by 3" high by 7' long.<br />
Variable meter sensitivity<br />
control.<br />
Uses newest type 6AF4<br />
high frequency triode in a<br />
Colpitts oscillator circuit.<br />
Continuous coverage<br />
from 2 megacycles to over<br />
250 megacycles in 6 ranges.<br />
Head phone monitoring<br />
jack.<br />
AC power transformer<br />
operated for maximum<br />
safety.<br />
Here is the GRID DIP METER KIT you have<br />
been asking for. This new HEATHKIT instrument<br />
is compact highly sensitive and easy to<br />
use. Housed in r<br />
handsome formed aluminum<br />
cabinet -roundel corners -durable oven baked<br />
finish on panel and cabinet. The entire instrument<br />
can he easily held and operated in one<br />
hand. tuning accomplished with the thumb<br />
wheel drive. This excellent design feature leaves<br />
the other hand eitirely free for making circuit<br />
adjustments. The instrument with many applications - with oscillator energized, use it for finding<br />
the resonant frequency of tuned circuits, locating parasitics, determining characteristics of filter circuits,<br />
roughly tuning transmitter stages with power off, and neutralizing transmitters. Useful in TV<br />
and radio repair work for alignment of traps. filters. IF stages, peaking and compensation networks<br />
within the 2 to 150 megacycle range. With the oscillator not energized, the instrument acts as an<br />
absorption wave neter and indicates the frequency of radiating power sources. Locates spurious oscillations,<br />
as a relat ve indication of power in various transmitter stages. etc. Phone jack permits monitoring<br />
of AM transmitter for determination of radiated hum, audio quality, etc. ( Head phones not<br />
included). <strong>Com</strong>plete kit includes plug -in coils, tube, all necessary parts and detailed assembly and<br />
instruction manual.<br />
Vreeargea IMPEDANCE<br />
BRIDGE KIT<br />
geal4ut<br />
HANDITESTER KIT<br />
MODEL IB -1B<br />
SHIPP NG<br />
WT. 15 LBS.<br />
$695ó<br />
The HEATH 1T IMPED-<br />
ANCE BRIDGE is especially<br />
useful in educ. tional training<br />
programs. industrial laboratories<br />
and for exp,rimental work.<br />
Use it for measuring AC and<br />
DC resistance v. lue of resistors.<br />
determination of condenser capacitance and dissipation fact sr, finding coil<br />
inductance and storage factor, electrical measurements wol k, etc. Quality<br />
components: GR 1000 cycle hummer, GR main control, Mallory ceramic<br />
wafer silver plated cousact sw:,chss, t/ -% precision resistors, etc. The basic<br />
circuit is a self powered, 4 arm bridge. Choice of Wheatstone, Capacitance<br />
comparison, Maxwell or Hay bridge circuits. Resistance fro n 10 milliohm<br />
to 10 megohm. Capacitance 10 mmf to 100 mfd. Inductance 10 microhenry<br />
to 100 henries. Dissipation factor .002 to I. Storage factor Q) 1 to 1000.<br />
The IMPEDANCE BRIDGE has provisions for external generator use for<br />
measurement at other than the 1000 cycle level. Take the guess work out<br />
of electrical measurements. The HEATHKIT IMPEDANCE BRIDGE<br />
mounted in a beautiful polished birch cabinet with large easy reading panel<br />
calibrations will furnish years of accurate, trouble free measurement service.<br />
RO(Rt INTERNATIONAL (ORP.<br />
NEW I VOIIN CITY 110)<br />
EMCEE<br />
... BENTON HARBOR 15,<br />
The HEATHKIT Model M -I<br />
HANDITESTER fulfills requirements<br />
for a portable volt ohm<br />
milliammetcr. This kir features<br />
precision I ;'ó resistors, 3 deck<br />
switch for trouble free mounting<br />
of parts, specially designed battery<br />
bracket, smooth acting ohms<br />
adjust control, beautiful molded<br />
bakelite case and a 400 microampere<br />
meter movement. 5 convenient<br />
AC and' DC voltage<br />
ranges as follows: I O - 30 - 300 -<br />
1000 - 5000 volts. Ohms ranges<br />
0 - 1000 and 0 - 300,000. DC<br />
milliampere ranges 0 - IO milli-<br />
_amperes and 0 - 100 milliamperes.<br />
The instrument is easily<br />
assembled from complete instructions<br />
and pictorial diagrams. Test leads<br />
are included. Carry the HEATHKIT<br />
M -I HANDITESTER in your tool box<br />
at all times for those simple jobs and<br />
eliminate that extra trip for additional<br />
testing equipment.<br />
MODEL M.<br />
SHIPPING<br />
WT. 3 LBS.<br />
1350<br />
April, 1953 83
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