This circuit was obtained from Popular Electronics from June 1978. It doubles the input DC voltage. Obtained current is very low, serving only for polarization circuits.
Found in an English publication, this control is intended for 220 V mains powered motors. However, it...
This circuit was taken from the 1974 Ferranti transistor manual. Transistors are common types at...
For someone who wants to take advantage of a double transformer in a good power supply, we found...