This regulator circuit was found in the June 1984 issue of Radio Electronics magazine. The LM11 is a power operator. Voltage selection is done by a switch,
This circuit was found in a 1964 documentation. It shows how to achieve automatic gain control for...
Using transistors at the time, this circuit was found in a 1967 Ferranti documentation. The...
This circuit, which controls both the temperature and the level of a liquid in a reservoir, was...