We found this circuit in a Japanese publication in 1967. The circuit consists of a 15 W audio amplifier with germanium transistors including a voltage indicator power supply.
This circuit of a Popular Electronics is intended to control a wiper. The circuit consists of a...
Using germanium transistors, this amplifier provides a 540mW output power when powered by 9V. We...
We found this high input impedance, low output impedance amplification stage in the October 1993...