MP Posted June 4, 2006 Report Share Posted June 4, 2006 Cooperman,I do not think the "High Voltage" members need to worry much, unless they are making their own vacuum tubes. According to the 4 requirements in your link for a device to be emitting radiation, requirement #4 is "Low gas pressure between cathode and anode, i.e., a moderately good vacuum."MP Quote Link to comment Share on other sites More sharing options...
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