We found this circuit in a 1969 General Electric documentation. The circuit uses transistors of the time and the diodes in the dotted board must be mounted on the output transistor heatsinks.
This dimmer for incandescent lamps was obtained from an American 1990s documentation. The circuit...
In the figure we have the circuit of an amplifier for alternating signals with 10 times gain,...
This 80's circuit can be used in media recovery. The integrated circuit is of the time, but modern...