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A large clear vacuum tube with some metal fins inside it. It's about a foot (30cm) tall with a thick metal base

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https://digipres.club/system/media_attachments/files/111/540/482/880/758/870/original/8987230fc8e4c644.jpeg

Notices where this attachment appears

  1. Foone🏳️‍⚧️ (foone@digipres.club)'s status on Friday, 08-Dec-2023 03:21:32 JST Foone🏳️‍⚧️ Foone🏳️‍⚧️

    My coworker brought in a big electron tube/valve. Anybody wanna guess what it is?

    (@tubetime probably already knows)

    In conversation about a year ago from digipres.club permalink
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