This unijunction transistor circuit was found in Radio Electronics magazine from July 1968. The circuit operates up to approximately 100 kHz depending on C1.
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...