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Posts tagged SA602s、

Circuit diagram 75 Meter QRP SSB Transceiver

The 75 Meter QRP SSB Transceiver Theory of Operation 6-30-03 In general, the transceiver switches the 4-element 1500 ohm xtal BPF ends between the inputs and outputs of the two SA602s to reverse the signal flow for R/T operation. Since no IF amplifier is used in the design, 20 dB of additional receiver gain is […]

Electronic circuit diagram Low distortion audio amplifier 150w

Electronic circuit diagram Low distortion audio amplifier 150w

Balanced Microphone Amplifier circuit

Balanced Microphone Amplifier circuit using TL072, 1N4004, 1N5819

Power Supply Circuit for Low Noise Audio

Power Supply Circuit for Low Noise Audio

LM555 Microcontroller Circuit TIMER Output Duty Cycle Variable part 21

LM555 Microcontroller Circuit TIMER Output Duty Cycle Variable part 21

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