Use your volt ohm
meter to read those
unmarked inductors.
 Measures chokes
from 3uH to 7mH.
Requires a 9-volt
battery.

Enclosure for the
Inductance Meter
Kit (1A-1).

3-1/2" x 4" x 1"
Connects to any phone,
scanner or amateur radio.
Decodes any DTMF signals.
Decodes digits 0 thru 9, #,
*, A, B, C on a 2-line 16
character LCD display.
Stores the last 490 digits
recorded.  Use scroll
switch to search through
the memory.  Also decodes
repeater codes, control
codes or any other touch
tones that are broadcast.
Complete with black
anodized cabinet.  Hook-up
via RCA jack.
Kit Form

Multi-pole four stage
notch filter eliminates
picture distortion and
the annoying "beep...
beep" found on premium
cable channels between
2 and 22.  Connect
between incoming cable
or convertor and TV/VCR.
Works with or without a
cable converter.  Can be
used on standard 75 ohm
antenna systems to
remove any single channel
(requires 2 filters).  This kit
sold for educational  purposes
only.  Requires permission
of local cable company to use.

Transmit stereo sound
to any FM radio (from
76 to 108 MHz FM).
 Excellent clarity with
no drift.  Approximate
40 dB stereo separation.
Antenna length determines
distance of broadcast.
Works by plugging any
stereo signal to the RCA
jacks on this transmitter.
Capable of sending signal
to walkmans, from car to
camper, through an auditorium,
around the neighborhood, etc.
Comes equipped with right
and left volume contols.

Enclosure for the
FM Stereo Transmitter
Kit (FMST-100).

Complete with a
speaker, the only
thing you need
is your key with
this kit to practice
Morse Code.  Operates
on 9 VDC.

1-3/4" x 3-1/2"
This strobe light kit
is a perfect attention-
getter.  The flash rate
of your strobe is adjustable
by a 10K pot from 1 flash/
second to 1 flash per every
30/seconds.  Operates at
12 or 6 Volts.

Only receives beam
of 40 KHz modulated
I/R light so that it
blocks out other light
sources of direct I/R
light.  When used with
companion transmitter,
kit can be used to detect
objects interfering with
beam, count objects, or
as remote control.  Output
can be wired as "normally
open" or "normally closed."
Operates on 6-12 VDC.

Transmits a beam of
I/R light across 6-8 ft.
distance.  Use of 40
KHz modulated beam
blocks out other sources
of direct I/R light.  When
used with companion
receiver, kit can be used
to detect objects interfering
with beam, count objects or
as remote control.  Operates
on 6-12 VDC.

TEMP OUT

1" x 1-3/4"
Super sensitive amplifier
kit can hear through
walls, etc.  Couple to
a parabolic reflector and
pocket radio earphones
to hear for blocks.  Can
be used as a general
purpose 1.5W amp.  Supplied
with a mini-microphone.
Runs on 6-12 VDC.

10.45

2-3/4" x 1-7/16"
Voltage monitor kit
monitors voltage using
7 LEDs (2 red, 2 yellow,
3 green).  Change resistors
to select voltage ranges
and indicated steps:  5
or 8V in 1/4 steps or 12V
in 1/4, 1/2 or 1V steps.
All parts included.

The DT-3 kit will turn your digital volt ohm
meter into an accurate digital thermometer
with .1 degree resolution.  Measure temperatures
from -40 Degrees to 250 Degrees F. The remote
sensor is .25" sq. and can be mounted many feet
from the meter.  Power requirement 9 V DC
Size: 2" x 1.35"

This kit transmits a 40KHz modulated I-R signal to a
distance of 6 to 8'.  Place the transmitter on one side
of a doorway and the receiver on the other side to see
if an object passes through.  Can be used as a remote
switch to turn objects OFF and ON by infrared.  The IR
receiver will only receive 40KHz modulated infrared
light.  You can configure the output for normally ON or
normally OFF operation.  This allows you to use it as a
security sensor or as a remote control switch.  You can
use the receiver  to test TV or VCR remote controls.
Transmitter Power Requirements: 6-15V DC.
Receiver Power Requirements: 6-12V DC.

Digital logic:  the heart of today's technological revolution.
Yet, digital signals are either "on" or "off", and you need
an easy way to monitor them.  Enter the EBLOG-300, a
simple piece of test equipment that comes in very handy.
Logic probes test digital circuits at various points, and
show whether that point is high, low, or constantly changing.
They help you understand and troubleshoot logic gates
timers, clocks, counters, prescalers, and other digital circuits
you might come across.  The logic probe is powered by the
circuit under test.  Size 4" x .75"

This kit teaches how amplifiers take a small signal
and "magnify" it to drive a small speaker or headphone.
It's based on the LM386 Low Voltage Power Amplifier.
This chip is not a toy.  It's designed to be used in a variety
of consumer-electronics applications such as AM-FM radio
amplifiers, portable tape or CD players, intercoms, TV sound
systems, etc.  Provides up to 1 watt of low-distortion audio power.
Harmonic distortion is 0.2%; voltage gain up to 46dB.
Power requirement 5-10V DC, Size 2.25" x 2.75"

Power Requirement:
7.5 to 18V DC.
Size:  1.5" x 1.3"
This VOX circuit can
be used to operate a tape
recorder, ham radio, CB
radio or turn on an alarm.
The VOX-1 kit has 100 mA
of output that operates
a relay, light, motor.

Power Requirement:
9 - 12V DC.  Size:
.75" x 1".  This kit is
perfect for kid toys
and model trains.  Add
a box, set it on the
dash of your car and
use it as an auto burglar
alarm.  Comes with 2
5mm LEDs that alternately
flash.

Power Requirement:
 9 - 12V DC.  Size:
.75" x 1".  This kit is
perfect for kid toys
and model trains.  Add
a box, set it on the dash
of your car and use it as
an auto burglar alarm.
Comes with 3mm LEDs:
2 red, 2 green & 2 yellow.
Mix or match the colors.

TEMP OUT

Power requirement:
4.5 - 12V DC.
Size:  .9" x 1"
Use this kit in
A-STABLE
(continuous train
of pulses) or in the
MONO-STABLE
(triggered time delay).
Times circuits from nano-
sec. to 30 min.  Comes
with variety of resistors
and capacitors suitable
for most applications.

6.95