Have you guys ever experienced this? Only happens when I first turn it off of standby, and lasts, intermittently for 30 seconds or so. It's a high pitched whistle, that changes frequency, from high to low. After 30 seconds or so, the amp acts like normal. I fear it is a bad solder joint or bad cap. However, I do need to roll some tubes and check that out.
I never heard it before I biased the amp properly though, so it may be a power tube problem? The guy I bought it from said it may need some new tubes. Didnt know how old they were.
Sent from my SAMSUNG-SM-G891A using Tapatalk
I never heard it before I biased the amp properly though, so it may be a power tube problem? The guy I bought it from said it may need some new tubes. Didnt know how old they were.
Sent from my SAMSUNG-SM-G891A using Tapatalk
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