Hughes suggests this circuit in a 1968 documentation. The circuit uses old transistors that can be replaced with equivalents. MOSFET is the critical component of the circuit.
This circuit was found in an ancient American documentation. The integrated circuit is of the time...
This typical two-transformer push-pull step circuit can be found on many small old radios and...
This circuit uses an 80's operational amplifier. The circuit is from an old RCA manual and can be...