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June 22, 2010
This circuit is a simple form of the commercial UPS, the circuit provides a constant regulated 5 Volt output and an unregulated 12 Volt supply. In the event of electrical supply line failure the battery... [more]
June 22, 2010
The limitation of car supply voltage (12V) forces to convert the voltages to higher in order to power audio amplifiers. [more]
June 22, 2010
Using a single cable such as speaker wire or doorbell cable, this circuit can be remotely positioned, for example, at the bottom of a garden or garage, and used to detect all sound in that... [more]
June 22, 2010
Tendency of catering: 15V Force of expense: 4,2Wrms in the 4W Minimal signal of entry: 94mVp-p with preamplifier, 0,65Vp-p without the preamplifier. [more]
June 22, 2010
Amplifier 2x30W with STK465. Small number of components. [more]
June 22, 2010
AM FM Simultaneous Transmitter Using Digital IC [more]
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