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Mini fm radio Transmitter circuit

Mini fm radio Transmitter circuit Mini fm radio Transmitter circuit  using BF199 This small FM transmitter with a range of about 50 meters designed for hoby. With lots of mini-transmitters then you have a comprehensive, action-packed radio program. Due to the power supply via the USB port of a high frequency stability is achieved. Alternatively, […]

micro transmitter fm

micro transmissor fm circuit using bf49402 Simple 30 meters range FM transmitter using bf49402 BAT      3 – 6 volts C1     47nF C2     4,7pF C3     100nF CV1     3pF – 30pF T1     bf494 R1     2k7 R2     8k2 R3     5k6 R4     47

Circuit Diagram Radio Stereo Coder Multplexer Part 1

Circuit Diagram Stereo Coder Multplexer Multiplexer consists of 4 TTL ICs and transistors. A 7600-kHz crystal oscillator built with the 3-NAND The IC’s 2 and 3 of type SN7490. Now think of 76 kHz signal as a divider of two Werken. Either 38 kHz signal and the output Q Qnot decreased. Transistors T1 and T2 […]

The 80 Meter band Radio Circuit

The 80 Meter band Radio Circuit using TR 2N2222, C460, C372, C1162, C1173, C1226, D476, D68,D67,C901 The 80 Meter band Radio Circuit using TR 2N2222, C460, C372, C1162, C1173, C1226, D476, D68, D67, C901

Power Supply TV China circuit

Power Supply TV China circuit Power Supply Circuit Diagram Supplay tv circuit diagram free

Charge Balance converter circuit

AD7711 IC for Charge Balance converter circuit

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