This inverter circuit for a capacitive discharge ignition system was found in a Radio Electronics magazine from February 1967. The power transistors must be equipped with heatsinks.
This audio generator that produces both rectangular and sinusoidal signals was found in a...
This simple circuit for a high impedance magnetic phone (500 ohms or more) has been found in a...
Found in an American publication from 1968, this circuit can be made based on a TIP42 that must be...