This 4-voltage power supply using zener diodes has a maximum recommended current of 25 mA. The circuit was found in the May 1966 Radio Electronics magazine.
This circuit was obtained from the July 1970 issue of Radio Electronics magazine. Zeners are power...
This circuit allows you to simulate an analog telephone line for the repair and testing of...
This small power amplifier makes use of an output transformer given its design time. In fact, the...