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Geiger counter circuits

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Conundrum
Sun Mar 16 2008, 12:19PM Print
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Geiger counter circuit I found online.
1205669942 96 FT0 Geiger
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uzzors2k
Sat Mar 22 2008, 08:09PM
uzzors2k Registered Member #95 Joined: Thu Feb 09 2006, 04:57PM
Location: Norway
Posts: 1308
Update: This one works better and has a LED, that other one was just a preliminary test circuit. Here's where I took most of the circuit from. Link2
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Conundrum
Mon Apr 28 2008, 08:27PM
Conundrum Registered Member #96 Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Thanks Uzzor! :) this makes life a lot easier since I have the correct sized zeners already.

wonder if it will work with the microscopic transformer from the Kodak "Fun" flash. Pen sized Geiger anyone?


I was looking into using a small LCD display from an old step counter as the radiation indicator but the problem here is connecting to it. Perhaps some sort of bargraph (made one of these a while back out of a cheap pen mains sensor)

-A
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