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Posts tagged flyback oscillator

How to test flyback transformer tv

Flyback Regulator Circuit How to test flyback transformer tv using LM2577ADJ, LM385, 4N27 How to test flyback transformer tv, crt tv no power, horizontal ic function, how to repair crt tv pdf, crt tv power supply circuit diagram pdf, how to repair tv power supply board, universal power supply for crt tv, b+ voltage in […]

Stereo Audio Amplifiers

Stereo Audio Amplifiers circuit using stk439 Stereo Audio Amplifiers circuit using stk439 Stereo Audio Amplifiers R 1 ……….. 2 K 2 R 2,4 ……… 220 K R 3 ……….. 390 K R 5 ……….. 100 R 6 ……….. 120 R 7 ……….. 12 K R 8 ……….. 10 C 1 ……….. 470 pF C 2 […]

Audio power amplifiers

Audio power amplifier circuit is used AN7112

50 watts audio amplifier

50 watts audio amplifier using LM3876

The circuit Tv transmitter very simple

The circuit is very simple, it just has three transistors, but the transistor types have been changed for VHF/UHF transistors. You can use 2N2369, BSX19 or BSX20, or any small signal transistor with an “ft” of typically 400MHz or more. The transistor DC biasing is a little more tolerant to varying transistor types than the […]

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