This circuit was found in a Mallory documentation from 1968. The integrated circuit is of the time, unusual in our day. Input sensitivity is 20 mV for 2 W output.
Hybrid PWM controllers with integrated 8-bit microcontrollers for supervision and management can...
This amplification stage circuit with a germanium transistor was found in a 1980s documentation. The...
This circuit is from an 80's documentation. The circuit makes use of a component of the era, the...