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Posts tagged 1500

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 […]

Guideline Rules and designing PCB

Guideline Rules and designing PCB

Amplifiers Audio using LA4505

Amplifiers Audio using LA4505

LCR RIAA AND TUBES Phono Schematic

LCR RIAA AND TUBES Phono Schematic using EQ600

CB RADIO or 80 METER HAM RADIO circuit diagram

CB RADIO or 80 METER HAM RADIO circuit diagram using TR 2N2222, C460, C372,  C1162,  C1173,  C1226, D476,  D68, D67, C901

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