Geiger Counter Circuits
Geiger Counter The above circuit was used to construct a home made Geiger counter employing a 10 inch Geiger tube LND 78014 The pulses from the tube were converted into 3 volt fixed width a few hundred microseconds pulses suitable for averaging using the following circuit updated 5/5/04 The pulses may be counted with a digital circuit or may simply be averaged to apply to an analog