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.
July 25, 2016 –Mouser Electronics Inc. is teaming up with celebrity engineer Grant Imahara for the...
This CW circuit was found in a Radio Amateur Today from the 890s. The CMOS circuit must be powered by...
This circuit was obtained from an old American publication. The uA702 is a differential amplifier and...