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.
In this transmitter for telephone conversations, found in a 1985 publication, the L1 coil has 4...
We found this circuit in a 1964 Electronic Design. Transistors can be modern general-purpose...
This circuit was obtained from an 80's documentation from General Electric. The circuit uses an...