This stage was found in a 1964 Electronic Design. The transistors are of the time and the shape of the signal obtained is shown in the diagram.
This circuit was found in an English magazine from 1979. The magazine no longer exists, but the...
This circuit generates signals in the range of 50 kHz to 1 MHz with a rectangular waveform. The...
We found this circuit in the October 1974 issue of Radio Electronics magazine. Note the waveforms...