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Old 07-25-2009, 01:12 PM   #29 (permalink)
Procter2812
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Re: Humming & vibrating DSL50 head

Quote:
Originally Posted by PaoloJM View Post
The DSL 100 has a cap installed between the plate and screen of the fourth power valve. This helps to reduce the hum that's inherent in the design (I'm afraid to say anything insulting here!!). These are rated quite low at 500V and are prone to failure, causing much hum. I've seen a few go and replace them with a 2kV, 22p cap.
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I have a problem on my TSL where there is a hum coming through the speakers at idle and the hum and buzz is the same no matter what volume the amp is at.... you think it could be this cap??/ but surely the hum would increase as the amp went louder??
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