Three-phase converter (CB21931E)

This circuit was found in the RCA Power Transistor manual from the 70's. The circuit uses power transistors of the time.

5 V to 400 V Converter (CB1478E)
This circuit converts voltages from 5 to 12 V at voltages of 100 to 400 V. The transformer has a...
Spy FM (CB20402E)
This circuit was found in an American documentation and there are several similar versions on the...
800 W x 120 V inverter (CB7180E)
Found in Motorola's 1968 power circuit manual, this circuit has a high input voltage and no...