Teslaundmehr
| Diy cool Geigercounter #Beta/Gamma @Teslaundmehr | Uploaded January 2015 | Updated October 2024, 1 week ago.
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FHZ-74 V
HV Supply:
youtube.com/watch?v=EUEfsihr7i8
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Diy cool Geigercounter #Beta/Gamma @Teslaundmehr