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.
The oscillator circuit is an ICM7556, the dual CMOS version of the 555. The frequency depends on...
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...
This circuit was found in an American documentation from 1968. The circuit uses transistors from that...