This is the power supply circuit for the amplifier in the previous circuit. The source is adjustable and uses power transistors of the time. The AC transistor must be mounted on a heat sink.
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...
This circuit was found in a Popular Electronics from the 90s. The circuit uses general purpose...
This voltage regulator circuit has a traditional configuration with two transistors, and can be...