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Archives for September, 2012

Power Supply AC-Matic and dimer Circuit

Power Supply AC-Matic Power Supply AC-Matic and dimer Electronic Circuit Diagram with mosfet

FM Stereo Encoder

FM Stereo Encoder for FM Transmitters

Audio Recorder Circuit

Audio Recorder Circuit using LM324, PIC16F84A, ULN2803A, 1N4148, 2N3904

25W Audio Amplifier Circuit very simple

25W Audio Amplifier Circuit, Using IC TL081 and Tr TIP125, TIP120

Shunt Reg circuit diagram

Shunt Reg circuit diagram using BC549C, 2SJ200-201

sound equipment

sound equipment sound equipment Mixer 4 canals circuit using IC CA3048 sound equipment R1 500 k Ω      C1 0.47 µF      U1 CA3048 R2 820 Ω         C2 50 µF         U2 CA3048 R3 100 Ω         C3 0.008 µF    U3 CA3048 R4 8.2 k Ω       C4 0.008 µF    U4 CA3048 […]

DC power converter

DC power converter 12V DC to 120V DC The most obvious approach would be to make a DC power converter 12V DC to 120V DC, output at 50 or 60 Hz, but this requires a rather large and heavy transformer. So it’s better to use a high frequency, at least 25kHz, so a very small […]

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