File:Geiger counter prototype.webm
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Size of this JPG preview of this WEBM file: 800 × 450 pixels. Other resolutions: 320 × 180 pixels | 640 × 360 pixels | 1,280 × 720 pixels.
Original file (WebM audio/video file, VP8/Vorbis, length 51 s, 1,280 × 720 pixels, 3.02 Mbps overall, file size: 18.37 MB)
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English: A Geiger counter prototype. The tube is an LND-712. I'm putting on a small tube full of tritium taken from a glow-in-the-dark keyring. Tritium is a β emitter. The circuit takes 9V from a PP9 battery and boosts it up to ~500V (I measured the voltage using a 1GΩ resistor in series with the meter - it works out at about 560V). I'm getting some constant LED activity caused by noise from the booster circuit, but the clicks are loud and clear. |
| Date | |
| Source | YouTube: Geiger counter prototype – View/save archived versions on archive.org and archive.today |
| Author | jo0ls |
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Attribution: jo0ls
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This file, which was originally posted to YouTube: Geiger counter prototype, was reviewed on 13 February 2020 by the automatic software YouTubeReviewBot, which confirmed that this video was available there under the stated Creative Commons license on that date. This file should not be deleted if the license has changed in the meantime. The Creative Commons license is irrevocable.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 09:02, 11 July 2018 | 51 s, 1,280 × 720 (18.37 MB) | Vislupus (talk | contribs) | Imported media from https://www.youtube.com/watch?v=l5qVAu9W3G4 |
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