Hand-Made Vacuum Valves

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Hand-Made Vacuum Valves 0

Submitted by

djmoore

on Tuesday January 08 2008, @03:41PM

djmoore writes "Over at Make Magazine, watch this video of a French ham making and testing his own vacuum tubes. It looks like he built much of his own equipment as well."

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Hand-Made Vacuum Valves

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Hand-Made Vacuum Valves