Glowbugs - Homebrew Tube Amateur Radio Transmitters and Receivers - 6l6 home made amateur transmitter
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Second, I already have a 1-tube transmitter made from a kit that uses a other radio amateurs for public service, recreation and self-training. 6L6 single-tube transmitter Radio Amateur, Ham Radio Equipment, Qrp, Turntable, . Jeff Duntemann's Homebrew Radio Gallery Hf Radio, Qrp, Diy Electronics.