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.
Found in American documentation from the 90's, this circuit consists of a solid state relay with...
In a voltage follower, the voltage gain is unitary, the input impedance is very high, and the...
Found in an English Maplin magazine in 1983, this circuit has an RIAA equalization. We suggest its...