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 from March 1984 Radio Electronics is intended to allow the use of an oscilloscope to measure...
This circuit was obtained in an English publication of 1975. It is a circuit that stabilizes an...
This control circuit up to 1 kW was found in a 1967 RCA documentation. The components are from...