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.
This circuit was found in documentation from the 1980s. The circuit can be implemented with other...
This circuit was found in an Electronic Design from 1964. The components are from that time and...
Taking Raytheon's 3900 integrated circuits as an example, uncommon today, this circuit can be used...