Tag: gamma
![Geiger counter with SBM20 tube Geiger counter with SBM20 tube](https://www.electronics-lab.com/wp-content/uploads/2015/08/general_vue2-675x1024-675x1024.jpg)
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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