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Questions about tubes and gear that glows. FAQ

Unless you are 1kV or more, the tubes could care less about the speed of first B+

Ripping the electrons off the cathode of a cold tube is a very high voltage problem. Relax. Audio tubes at 500v are not hurt this way. It was a marketing thing to extract maximum $$$ from someone hawking superraremetal5A44forevertubes.

however, don't leave tube heater on with no B+ for hours on end which can cause cathode poisoning, but that is the opposite problem.


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