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.
Who is the fastest? This circuit with neon lamp is powered directly by the network (there is no...
This circuit is from a 1965 General Electric publication. It uses a thermistor to fire a reed...
This setting appears multiple times on the site from different sources. This is from a 2000 manual...