This is the old name given to flip-flops or biestable multivibrators. In fact, this is a 1967 Ferranti circuit, triggered by a light sensor.
This circuit operates with frequencies from 0.5 to 400 MHz. We find it in a 90’s NASA...
This circuit is from an Electronics Now from the 90s. It applies to almost any operational...
The circuit below was found in the March 1990 issue of Radio Electronics magazine. The circuit...