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Re: Flame in 300B Soltek Tube-is this normal?????

I'm not familiar with 300Bs but if I see this happened on my 6550s I will replace it.

However, if you only see a "blue glow" in the tube (not furious, shooting "flame" but nice blue hue on the glass) it can be normal: some screens on some tubes (SED Winged-C 6550) have holes in them and electrons may strike the glass, creating a blue glow.


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