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A Scratch Built Minimalist 4W SSB Transceiver Using Only 7 Transistors – Meet the PSSST-20 (Pete’s Simple Seven SSB Transceiver)
The goal was to create a fully functioning "Minimalist" SSB transceiver using something different than the currently popular bilateral (Bitx) topology and in doing so use the minimum number of transistor devices. The linked webpages (separate page for each module) describe a fully functional and operational 20M SSB transceiver that uses a total of 7...