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Geiger Counter Kit
PROJECTS
3D LED Cube Kit
Inverter DC-DC Converter Kit
Neon Transistor Clock Kit
This kit is a great project for high
school and university students.
The unit detects and displays levels of
radiation, and can detect and display
dosage levels as low as one
micro-roentgen/hr. The LND712 tube
in our kit is capable of measuring
alpha, beta, and gamma particles.
Subscriber’s Price $145.95
Non-Subscriber’s Price $148.95
Add HIGH VOLTAGE to your clock!
This is a Nixie Tube display version of the
Transistor Clock. It uses only discrete
components — no integrated circuits.
For more info, see the
April 2012 issue.
Subscriber’s Price $245.95
Non-Subscriber’s Price $249.95
Seismograph Kit
This kit shows you how to build a
really cool 3D cube with a 4 x 4 x 4
monochromatic LED matrix which has a
total of 64 LEDs. The preprogrammed
microcontroller that includes 29 patterns
that will automatically play with a runtime
of approximately 6-1/2 minutes.
Colors available: Green, Red, Yellow & Blue
Subscriber’s Price $57.95
Non-Subscriber’s Price $59.95
As seen in
the May
2012 issue.
Now you
can record
your own
shaking, rattling,
and rolling.
The Poor Man's Seismograph is a great
project /device to record any movement in
an area where you normally shouldn't have
any. The kit includes everything needed to
build the seismograph. All you need is your
PC, SD card, and to download the free
software to view the seismic event graph.
Subscriber’s Price $79.95
Non-Subscriber’s Price $84.95
FOR BEGINNER GEEKS!
Magic Box Kit
If you need +12V and -12V, but all that's
available is +12V, then this project is for
you. The inverted DC-DC converter gives
you -V out when you put +V in, and works
over a range of voltages without adjustment. It's an easy to build voltage mirror
that can supply over 100 mA without a
significant drop in voltage.
Subscriber’s Price $29.95
Non-Subscriber’s Price $32.95
As seen on the
April 2007
cover.
This unique DIY construction project
blends electronics technology with
carefully planned handcraftsmanship.
This clever trick has the observer remove
one of six pawns while you are out of the
room and upon re-entering you indicate
the missing pawn without ever
opening the box.
Subscriber’s Price $39.95
Non-Subscriber’s Price $45.95
The labs in this series — from GSS Tech Ed — show simple and interesting experiments and lessons, all done on a solderless circuit board.
As you do each experiment, you learn how basic components work in a circuit, and continue to build your arsenal
of knowledge with each successive experiment.
For more info and a promotional video, please visit our webstore.
$59.95 $49.95 $39.95
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August 2013
