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1 Results for "《〈 문의 OIO↗5793↗7458 》〉강남초원의집Ч강남더킹every강남식스강남유흥강남룸pay 강남유흥ŧ J강남식스강남룸damned"
$15 Geiger-Muller Counter for Beta/Gamma/XRay
Project
by
GH
An inexpensive Geiger counter that can detect several kinds of ionizing radiation using a surplus Soviet tube and a one-use camera circuit
90
9