Rivieraranch
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I suspect one of the JJ power tubes I'm using now.
My Mini Torii is up at DECWARE being looked over. So I brought my TABOO home from the office. While there it has been running from 4-8 hours per day. While at home I have been letting it run for a few days without turning it off. Today it began making some popping and cracking noises from the speakers. These were not real loud, just annoying enough to suggest that one or more of the tubes was acting up.
The tubes are an NOS Westinghoue 5U4GB rectifier; 2 JJ power tubes, and a 1957 JAN Sylvania 12AT7WA tube.
I automatically suspect the JJ's as cause of this problem. I am going to get to the bottom of this if it is the last thing I do.
What tube would you suspect as being guilty of cracking and popping?
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