AM Modulator

In Europe a lot of AM transmitters for medium wave have been switched off. When you want to listen to an old AM receiver a small AM modulator can help…

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QRP Transmitter for 80m
Simple 80 QRP Transmitter

QRP Transmitter for 80m

This weekend I found some time to work on a small QRP transmitter for the minimal art contest. It is based on my 40m transmitter I described here earlier. This is…

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QRP Transmitter for 40m (Part 2)
40m QRP transmitter in Hammond housing

QRP Transmitter for 40m (Part 2)

Last weekend I found some time to continue with my QRP transmitter project. I played a little bit with the output filter and ended up with this schematics: A 100p capacitor…

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QRP Transmitter for 40m
Simple 40m QRP transmitter

QRP Transmitter for 40m

Last Weekend I found some hours to start a little QRP transmitter project. For the Minimal Art Contest in 2015 I want to use a homebrew transmitter with less than…

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