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My 5U4GB filament gives scary flash when turning on the H+..

24.87.125.19

Posted by stewcle on March 20, 2007 at 23:43:43

Just added a switch on the B+ ground of my JELab 300B so that I can delay applying the B+ after the filaments are turned on. I was hoping that will prolong the 300B's service life, however every time I turn the B+ on, the 5U4GB flashes (not a BIG flash though). Is this normal? Will it affect the 5U4GB's lifespan?

Thanks for anyones advice..

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