Comment by mwattsun | Hacker News Reader

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Comment by mwattsun | Hacker News Reader

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Giant 555 Timer using discrete components

https://hackaday.io/project/182863-giant-555-timer

Similarly, a giant 555 Timer using vacuum tubes!

https://www.youtube.com/watch?v=bjAlzA4Cyys

I was thinking exactly this when reading the article. thanks

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