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Old 8th March 2010, 08:44 PM
Richard Richard is offline
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Join Date: Dec 2005
Location: Notts
Posts: 5,203
Default Re: Phono 3 with 5751 valves

Originally Posted by Shian7 View Post

Something 'happened' but I'm not sure what!

I switched on one day to find all sorts of weird sounds and after a bit of valve swapping became convinced there was a problem with at least two of them. So I asked Rich if he'd take a look, and this is what he found...

After poking and prodding around with a meter I can't find anything wrong, all the voltages are there or thereabout. So I don't know what exactly 'happened'!

It has to raise a big question mark over the reliability of these valves IMO... Has anyone else used them and had any problems?

Hi Mike,
How's it going? Is it working again with different valves? Did you find anything?
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