This 8 W amplifier with germanium transistors was found in a Japanese documentation from 1967. The circuit is of the commercial type and is powered by two 12 V batteries or by a symmetrical source.
In figure we have a three-phase AC motor control for voltages up to 600 V or 1200 V depending on...
This circuit can drive a white LED from a 3 V supply. The circuit is intended to supply White LEDs...
This application of the RCA integrated circuit released at the time was found in the August 1970...