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.
The purpose of this 1965 Radio Electronics circuit is to help observe cycloid waveforms on an...
This circuit was obtained from a 1976 NASA handbook. The circuit makes use of an operational of the...
In the figure we have the way to use a common LED as a light sensor. The operational power supply...