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 How many vacuum tubes does it take...
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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OP
shareholder in the making
Joined: Apr 2003
Posts: 16,441 |
to make a digital clock? I havan't actually counted, but it apparently takes quite a few: Vacuum tube digital clockThe site is in German, but it has plenty of impressive pictures, like this one: 
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