Information about the high voltage transformer and the detecting circuits was not given in this project by Electronics Engineering. The Geiger valve is the critical component in this project.
The circuit shown is from an old European publication. In it we have the way to activate a relay...
We found this circuit in a European publication from the 1990s. Transistors are still common types...
This circuit was found in an American documentation and can be added to common amplifiers of any...