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Recent events re-ignited my interest in radiation meassurement. As it turns out, Geiger Counters are very simple devices and seem a very suitable for a beginners electronic project. This project will be based on this schema kindly provided by Elektro magazine free od charge. ressources/GMzaehler-Elektor2006.pdf It will have additional features: * Beep/Click switchable. * Digitally adjustable tube voltage * Microcontroller * Generic Microcontroller outputs for extensiosn like displays and buttons * Batery power with boost DC/DC converter Possible features: * USB serial with Bus powered option * rfm12 radio header PCM layout will be done with gEDA opensource pcb layout tools.