This circuit was found in an ancient American documentation. The power supply is not given, but we have the voltages used. The relay is sensitive type for high voltage.
This circuit is from a 1967 RCA documentation. Components can be replaced with modern equivalents. The...
Kinescopes are no longer found on modern video monitors and televisions. However if the reader has...
The frequency of this astable depends on the capacitor that can be changed over a wide range of...