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#1
6th December 2008, 06:04 PM
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Fireworks in my valves!
Hi. What exactly is going on when you see arcing inside the glass envelope of a valve? The 5U4G rectifier in my 300BSET has developed a tendency to flicker for a moment or two upon switch-on. Then it settles down and works fine. I have tried three others and two of them do the same. Is it most likely the valve, or something gone wrong in the amp itself? Is it serious? Infinitely Baffled.
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