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.
In the figure we have the transmitter and the receiver for an optical audio link via infrared. The...
We found this symmetrical regulator in a documentation from the 70s. The circuit uses components...
This circuit was found in a 1960s General Electric unijunction transistor manual. The circuit can...