Thread: How a Valve Works - Blue Valves etc - Link
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Old 22nd November 2007, 10:16 AM
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Default How a Valve Works - Blue Valves etc - Link
This is one of the best articles on the web covering how valves work, their uses, lifespan, and problems,

http://www.vacuumtubes.net/How_Vacuum_Tubes_Work.htm