MicroGeiger: a simple open-source Geiger counter which connects as a microphone
DIY geiger counter - Make:
A Homebrew Geiger Counter Circuit - element14 Community
I made a Geiger counter - Henrik's Blog
Geiger-Müller tube detector circuit
Geiger Counter Circuits
Geiger counter Circuit, does this look like it'll work? - General Electronics - Arduino Forum
The Creative Science Centre - by Dr Jonathan P. Hare
A twin tube Geiger counter
Geiger Counter
Geiger Counter Circuit
ATtiny26 Geiger counter schematic and code - Electronics - Pololu Forum
Simplest Geiger Counter : 7 Steps (with Pictures) - Instructables
Pocket radioactivity detector
EA4EOZ, an amateur radio electronic enthusiast: UGP: Interfacing Geiger tubes to computers in a easy way
Geiger Counter Circuits
DIY Steampunk Geiger Counter - Page 3
Working Geiger Counter W/ Minimal Parts : 4 Steps (with Pictures) - Instructables
Geiger Counter Circuits
Pocket radioactivity detector
A twin tube Geiger counter
