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Re: Arc in EL-34

Thanks MIchael. Tapping it for a couple of minutes did indeed yield a bunch of small grayish particles. A few questions come to mind:

Where do these come from and what are they?

If I tap the tube to gather them at the bottom, can they short the pins where they enter the envelope?

Will the tube continue to worsen?

Now that I think of it, I do remember 3 or 4 times hearing a loud pop while running the amp, usually shortly after power up but all was well after that. So apparently the warning sign was there but I did not recognize it.




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  • Re: Arc in EL-34 - Marshall W 12/3/0608:14:03 12/3/06 (1)


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