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 elaborate mixer is from an Electronics Today International from the 80s. Operational...
This dual-band receiver was found in documentation from the 1970s. The original transistors are...
This circuit was found in a 2005 documentation. The triac must have a heat sink and the time is...