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Resources by ElectroMaster

Toy Organ 2012-09-17
This circuit produces a tone according to the button being pressed.
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This is an illustrated tutorial on building a variable voltage control for fans and other units, ba
5.00 star(s) 1 ratings
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The 555 Timer 2012-04-07
The 555 timer is capable of producing accurate timing ranges from micro
5.00 star(s) 4 ratings
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This article will explain the function of a bypass capacitor, when its appropriate to use them, and
5.00 star(s) 1 ratings
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A look at a powerful technique for controlling analog circuits with a microprocessor's digital outp
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To manufacture resistors (or other components like capacitors) of every possible value would be imp
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TV Remove Blocker 2011-12-18
Just point this small device at the TV and the remote gets jammed.
4.00 star(s) 1 ratings
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This circuit features automatic Exit and Entry delays and a timed Bell Cut-off. It has provision fo
5.00 star(s) 1 ratings
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This IC chip was designed specifically for use in power boosting applications in automobiles. It is
4.00 star(s) 1 ratings
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Simple Lie Detector 2011-09-10
Here's a simple lie detector that can be built in a few minutes, it is mean for fun and is obviousl
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This Field Strength Meter is simple and also quite sensitive. It uses an ordinary digital voltmeter
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Stun Gun 2011-09-04
This stun gun is powered by a 9V battery. The transformer steps up the voltage to about 1800V (but
3.00 star(s) 1 ratings
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[ATTACH=RIGHT]54828[/ATTACH]This handy Decade Counter (or sometimes called a Johnson Counter) can b
5.00 star(s) 2 ratings
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Jeopardy Quiz Game 2011-06-22
This electronic "Jeopardy" game circuit consists of four push-button switches. When one is pressed,
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This is an illustrated tutorial on building a voltage monitor for fan control circuits - rheostats,
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This circuit is very basic to build. To open a the lock which is connected to the K1 Load you must
4.00 star(s) 1 ratings
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Voice Scrambler 2011-01-13
With this circuit you can modify how your voice sounds by changing the pitch of your voice. This ci
4.00 star(s) 2 ratings
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The circuit uses a 555 timer wired as an astable oscillator and powered by the emitter current of t
4.00 star(s) 1 ratings
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Using a single cable such as speaker wire or doorbell cable, this circuit can be remotely positione
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Audio Notch Filter 2010-07-06
At first glance this circuit looks fairly complex, but when broken down,can be divided into high pa
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