This is a circuit that allows remote activation of a power supply. The circuit was used with a timer of the time. It appeared in the November 1973 issue of Radio Electronics magazine.
The article that teaches the assembly is from a Radio Electronics issue from July 1969. The...
The aim of this circuit is the protection of a 2N3055 transistor, avoiding the overheat. The...
This single trigger circuit has been indicated for photography applications. The circuit is from a...