We found this circuit in a 1965 publication by General Electric. The zener is 8.2 V x 1 W and the table shows the capacitor values according to the number of cylinders in the vehicle.
This circuit was suggested by Sprague Electric in an 80's documentation. The circuit uses a...
This circuit was found in a Radio Electronics from June 1967. The regulator is suitable for power...
This circuit is designed to be used with the infrared transmitter two circuits before this one....