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14 vacuum tubes mounted on a motherboard made by Usagi Electric that functions as a 555 timer.

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https://media.mstdn.social/media_attachments/files/116/350/260/719/257/652/original/bb621d1c27fd11f0.jpeg

Notices where this attachment appears

  1. Embed this notice
    Imogen (hopelessdemigod@mstdn.social)'s status on Sunday, 05-Apr-2026 17:13:55 JST Imogen Imogen

    #Electronics

    A 555 timer made with vacuum tubes.

    (I did not create this. Simply sharing it.)

    In conversation about 6 months ago from mstdn.social permalink
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