This old configuration of an audio amplifier has a push-pull two-transistor output stage. Output power is low and the critical components are the transformers. The circuit was found in an 1958’s publication.
This circuit is from an 80's documentation. It makes use of two SCRs with current capacity...
This circuit was found in a 1977 Signetics manual. The 556 consists of a 555 double and the...
I found this circuit in an English magazine from July 1982. The circuit is still viable because all...