Suggested by General Electric in a 1968 documentation this integrated amplifier uses a component of the era, the PA237. The circuit runs on 24 V and excites a 16-ohm speaker.
This circuit is quite simple to assemble, having been found in a traditional American publication. The...
We found this circuit in Mullard's 1960s transistor manual. No information about transformers is...
This circuit was obtained in a 1964 magazine, but it can be easily assembled today, as the...