This circuit that converts voltages from a battery into high voltages for tube circuits was found in Radio Electronics magazine from February 1960. The transformer is of a special type.
This circuit uses an audio output transformer found in old transistor radios. Power output is...
This circuit was found I a 1965 Radio Schack documentation. The transistors are from that time,...
This amplifier for distributing audio signals appears in other articles on this website and even...