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GEIGER COUNTER
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GROUND LINE GROUND LINE |
| The Geiger tube is so delicate you could deform with your fingers. So mount it gingerly.
Use “broom clips,” one at each end. Also, make sure you connect to the right
leads on the Geiger tube socket. The Geiger tube pins are numbered on the
underside of the base. Pin 1 connects to the main circuit and pin 3 connects
to ground. Pin 2 is a dummy pin that is not used.
Be certain the negative terminal of the battery goes toground. Mount the completed package on rubber mounts in an enclosure. Any kind of enclosure will do; we just happened to pick a metal tool box. If you also use a metal |