This circuit is from a documentation about the MC1723, Motorola equivalent of the well-known 723. The transistor admits equivalent and must be mounted in a good heat sink.
This stage of low power audio amplification was very common in devices powered by the 60's and...
This different circuit was found in a Radio Electronics from August 1965. It works with a voltage of...
This circuit was found in a 1980s documentation from the manufacturer of the integrated. The...