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June 22, 2010
This is a circuit intended to be used in basketball shot clock. [more]
June 22, 2010
These two circuits are multi-range timers offering periods of up to 24 hours and beyond. Both are essentially the same. The main difference is that when the time runs out, Version 1 energizes the relay... [more]
June 22, 2010
The 22 watt amp is easy to build, and very inexpensive. The circuit can be used as a booster in a car audio system, an amp for satellite speakers in a surround sound or home... [more]
June 22, 2010
The amplifier is a circuit of high frequency RF with distinguishable materials. The amplifier as circuit strengthens the tendency of signal with concrete aid, depending on the frequency of signal. [more]
June 22, 2010
Can be directly connected to CD players, tuners and tape recorders. [more]
June 22, 2010
It's stable and has output of 15-18 watts. This enough to terrorize your wide surroundings at the fm-band. [more]
June 22, 2010
It uses a normal 120 to 6V stepdown transformer in reverse to step 12V to about 350V to drive a lamp without the need to warm the filaments. [more]
June 22, 2010
Using a single 7812 IC voltage regulator and multiple outboard pass transistors, this power supply can deliver output load currents of up to 30 amps. [more]
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