We found this parallel regulator in a 1973 publication. Transistors admit equivalents and the output voltage can be modified by changing the zener.
Found in an article in the August 1971 Radio Electronics magazine, this circuit supports 106...
This sensitive circuit was found in a Texas Instruments optoelectronics manual. The transistors can be...
This circuit was found in a Japanese publication from the 1960s. It uses germanium transistors and is powered...