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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 […]

FM stereo radio Decoder circuit

FM stereo radio Decoder circuit diagram using LM1800N, NE5532

Low Power Amplifier Circuit

Best Low Power Amplifier Circuit Diagram Driver PCB and Lay out Power Amplifier Circuit Diagram using 1 N4937 2 N5551 2 N5401 2 SC4793 2 SA1837

28W Audio Amplifier Circuit using STK4311

28W Audio Amplifier Circuit using STK4311

LM555 Electronic Schematic Diagram Variable period Oscillator CD4017 part 30

LM555 Electronic Schematic Diagram Variable period Oscillator CD4017 part 30

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