This circuit was found in the July 1998 issue of Electronis Now magazine. It is a traditional gated version of the 4049 and has its frequency controlled by R2.
This circuit was found in an American documentation from the 80's. The transistor is a...
This transistorized circuit, with germanium transistors from the 60s, was obtained in a technical...
In the figure we have the way to use a voltage comparator powered by a voltage to control a...