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Image Credit
/-/https/www.sciencebuddies.org/cdn/Files/4437/6/SciF_See-Radioactivity_Figure7_part2_SDB_img.jpg)
Description:
Picture of the back side of the circuit board . You will have to break the solder to remove the radioactive source housing
Source:
Sabine De Brabandere, Science Buddies
License:
Science Buddies
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/-/https/img.youtube.com/vi/M63ew2hxEKk/0.jpg)
/-/https/img.youtube.com/vi/pK-iPwtW4W8/0.jpg)