We found this circuit in the November 1975 issue of Radio Electronics magazine. It uses a digital module from the time with several adjustments. The power supply must have the indicated voltage.
This circuit operates with input voltages from 50 to 140 V providing an output of 12 V under...
This circuit provides a 5 V negative output with a maximum current of 1 A. The circuit is from the...
We found this range of LEDs with the UAA180 in the 1976 Siemens Integrated Circuits manual. The...