This circuit is from a Radio Electronics from March 1960. The generator works with a 22.5 V battery, generating good intensity signals determined by the LC circuit.
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...