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 is a commercial circuit found in Radio Electronics magazine from September 1960. The circuit has...
We find this vibrato configuration with transistors in a 1987 documentation. The components are still...
The consumption of this circuit in the standby condition is only 1 uA. The circuit must be...