Geiger counter with SBM20 tube
Test/Measurements

Geiger counter with SBM20 tube

by weirdlab.fr: I “rebuild” my Geiger counter, the SBM-20 tube was initially inside the box, i have put this one inside a 32mm diam plastic tube, for more convenience, wired through a XLR3 cable. This counter is from “Electronique-Pratique” n°368, a french electronic...

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