Thursday, 3 March 2011

One Transistor Transmitter for QRP operation

am-transmitter1

It is one transistor transmitter based on crystal.It uses primary of shortwave oscillator coil as tank coil. Shortwave osc coil and variable capacitor can be salvaged from old shortwave radio.

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2 comments:

  1. Anonymous3 March 2026 at 18:31

    cool circuit what frequency is it for...? looks like 7 MHz cw ham band

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  2. Anonymous3 March 2026 at 18:37

    or if you used a 455 kHz crystal and a old red can out of a MW radio it may work as a B.F.O. to decode SSB on CB and ham bands.G8XCB

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