Little circuit of a Morse Code Oscillator is presented here. Excellent for learning and teaching Morse code, this code practice oscillator – ideal solution to practice sending the code and improve ...

And building this one-transistor ... Morse code because the minimalist build only supports continuous-wave (CW) mode, although it can be modified for amplitude modulation (AM) voice work. The ...

The BOM has only about fifteen parts including a 2N2222 used as a crystal-controlled oscillator ... transistor” thing, but we’ll allow it. Oh, and there’s a catch — you have to learn Morse ...