Found in a 1965 General Electric circuit manual, this circuit uses SCRs from that time. Modern equivalents according to the power can be used.
This amplifier with the LM1098 and LM101 by Motorola from a 1990 manual can be designed with more...
This small power amplifier makes use of an output transformer given its design time. In fact, the...
We found this circuit in an American 1980s documentation. Other comparators can be used and the...