One tube amateur transmitters
Why not use a big tube like a 6L6 and get lots of output? The design of a one- tube (or one transistor) transmitter is a compromise involving power output.
Introduction
A One-Tube Controlled Carrier AM Transmitter
We had a very nice QSO, and it turned out that Bill was using a homebrew, one- tube transmitter using a 6A6 tube. I Googled “6A6 transmitter”.
Description:Bench-testing the transmitter After the unit was completely wired, two 6V6G tubes, a crystal and a coil were inserted in their respective sockets. A pilot lamp volts, 0. While there are a number of prospective dual section tubes with the necessary high-transconductance triode section, the 6CQ8 is the only one I've found where the second section is a tetrode. However, if the level is increased, the entire trapezoidal pattern increases not only along the trapezoidal slope, but also, the entire trapezoid expands vertically. In addition, I including wiring information on paper template. There is no visible flattening of the input signal in the above scope photos.
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