This old configuration of an audio amplifier has a push-pull two-transistor output stage. Output power is low and the critical components are the transformers. The circuit was found in an 1958’s publication.
This circuit is from an1966 General Electric documentation. The Triac can be equivalent to 6 A or...
Suggested by Amperex in 1968, this circuit is intended for hearing aids. The integrated circuit...
This circuit can be used with motors or resistive loads, such as heaters and incandescent lamps....