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Posts tagged D438

Stereo Power Amplifier

68W Power Amplifier schematic   68W Stereo Power Amplifier using TR A673, C828, C1213, D438, B560, TIP31 and TIP32

Audio Jammer – Noise generator for detector audio circuit

Audio Jammer – Noise generator for detector audio circuit Audio Jammer – Noise generator for detector audio circuit R1,R4 ………. 1K 0,5W R2,R3 ………. 39K 0,5W C1 …………. 5000pF/50V C2,C3 ………. 3000pF/50V FCS9012 ……. PNP FCS9012 ……. PNP

20 w Amplifier stereo circuit

20 w Amplifier stereo circuit using TDA 2004 Amplifier stereo circuit using TDA 2004 R1 120K Ohms R2, R4 1K Ohms R3, R5 3.3 Ohms R6, R7 1 Ohms C1, C2 2.2µF C3 10µF C4, C6 100µF C5, C7 100µF C8, C9 0.1µF C10, C11 1000µF TO 2200µF CI TDA2004A it is a circuit integrated […]

Preamps Microphone Mixer circuit

Preamps Microphone Mixer circuit Choosing a good power amplifier is very easy but to choose the perfect microphone preamps is not easy, because the adjustment of sound pressure level (SPL) with volt level (dBu). Matching microphones and preamplifiers requires proper research and measurement, so to do this does not depend on your budget – but […]

Led torch circuit using max660

led torch using max660

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