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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 Using LA4101

Electronic circuit diagram Low distortion audio amplifier Using LA4101

Audio Generator

Audio Generator using Transistor NPN

Visio Circuit Schematic Symbols with the Amateur Radio Relay

Visio Circuit Schematic Symbols

optical fiber power meter

optical fiber power meter optical fiber power meter Ground Wire Resistance Tester optical fiber power meter optical fiber power meter

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