This circuit was found in General Electric documentation from 1968. The circuit uses triac from the time as well as transistors that can be replaced by modern equivalents.
We have in the figure as a monostable a proximity switch where our body capacitance (estimated at 200...
With this circuit it is possible to obtain a voltage of 24 V using a 12 V regulator. The maximum...
This single-transistor oscillator was found in Radio Electronics magazine from February 1962. The...