Found in documentation from the 1980s, this highly sensitive circuit is based on the conduction by the presence of gas from an ionization chamber. The components are from the time.
With this circuit it is possible to control a current of several amps, depending on Q1, from a low...
Books and e-Books by Institute NCB 100 CIRCUITS - SHIELDS FOR ARDUINO FUN PROJECTS FOR THE...
This cricket circuit obtained in a 1992 documentation has an amplifying stage that, however, takes...