It is constructed with only one transistor. It makes DSB signal. It can make QSO with normal SSB station.
Carbon microphone modulates 50MHz CW signal. It produces a double sideband signal. It pass through the 50MHz band pass filter. It is radiated by the antenna. Modulator is constructed by diode single balanced mixer.
Authored by
Kazuhiro Sunamura at
Home Page, Added: 6 Jun 2007
http://www.intio.or.jp/jf10zl/1trtx.htm
