Mini Radiation Detector
Description
Case for a small pocket sized radiation detector. It detects beta and gamma radiation using a SI29BG tube. It doesn't count, it just gives an audible "click" when a hit is detected. It's powered by 2 CR2032 connected in series, they're connected directly to the audio amplifier. The IMEX is soldered onto the potentiometer of the amplifier. This serves both as ON/OFF and volume control. 2 Versions of the case are added: One takes M3 bolts directly, the thread will tap itself. The other version takes brass M3 inserts. Parts list: 2x M3x10 bolt 1.5K resistor 100K resistor 330pF capacitor <a href="https://www.ebay.com/itm/163698628750">IMEX HV power supply</a> <a href="https://www.ebay.com/itm/154256247341">SI29BG</a> <a href="https://www.aliexpress.com/item/32883895524.html">20MM Speaker</a> <a href="https://www.aliexpress.com/item/1005001386066191.html">PAM8403</a> <a href="https://www.aliexpress.com/item/4001185849382.html">Brass insert</a> Be careful when making this project, the IMEX power supply can output rather high voltages which can be quite dangerous. This build was inspired by <a href="https://hackaday.io/project/20371-mini-fallout-themed-geiger-counter">this</a> project by Tim.
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