We found this circuit in an English publication from 1969. The circuit uses transistors from the time and can operate at frequencies up to 300 MHz. Observe the waveforms of the obtained signal.
The aim of this circuit is the protection of a 2N3055 transistor, avoiding the overheat. The...
Indicated for applications with a PC, this circuit was obtained in an English publication in 1992....
This is the configuration of this type of oscillator given in an article in Electronics Now...