This 600-ohm output impedance circuit was found in a Radio Electronics from October 1963. The circuit uses PNP transistors of the time and is powered with a voltage of 12 V.
This circuit can produce signals up to 100 kHz depending on C1 and R1 adjustment. The output has a...
Found in Radio Electronics this circuit uses a fotodiac to drive a triac. The circuit can use...
This circuit was obtained in an American documentation translated in the 80's. The circuit can be...