This circuit supplies a voltage of 42 V, plus a symmetrical voltage of 12 V with 1 A. The voltage regulators must be mounted on heat sinks. The transformer is 35 + 35 V with 3 A.
This symmetrical configuration uses two operational amplifiers to obtain the rectification of a...
Found in an Electronics World of 1966 this circuit is intended for use with a microphone as an...
This oscillator generates a signal of approximately 400 Hz, which has its symmetry adjusted...