This circuit is from an old Japanese publication of 1962. The circuit uses two batteries, one for the filaments of the tubes and the other one of high voltage for the plate circuits.
This is the traditional configuration of the LM317 that appears in applications and other circuits on...
This circuit can be used as a basis for a power control where the comparator directly excites the...
This circuit is from an English publication from 1978. It generates random binary numbers when we...