This 32 A circuit uses SCRs of the time. We found it in a 90s General Electric documentation. The transformer is a commercial type of the time.
This circuit is from a 1976 Motorola CMOS manual. It can be implemented with modern Darlingtons like...
The circuit presented is from a 1972 RCA technical documentation. The integrated circuit consists of a...
We found this transmitter circuit for different frequency ranges in a 1992 documentation. The...