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.
Found in documentation from the 1980s, this converter or inverter circuit uses components from...
This circuit was found in a Motorola documentation from the 90s. The circuit uses a PUT, an...
In the figure we have a simple amplifier stage with a temperature compensated general purpose...