We found this circuit in a 1997 documentation. It is possible to automatically reverse the direction of rotation of a three-phase motor. The circuit uses WEG timers and contactors.
This circuit can generate signals up to a few megahertz, depending on the transistor used. The...
This circuit is from 70's documentation. The output transistors can be BC548 and BC549. The driver...
This circuit is from a Radio Electronics magazine from August 1960. It is a commercial circuit for marine...