What are some of the signs that output valves are getting on a bit? The impression I get from a read of chambonino.com is it's more common for them to fade away than go bang.
A loss in volume would be one sign that the output valves need replacing? What other signs are there? Do KT77's last longer than EL34's, or age differently?
(I'm not the brightest spark in the world, and it's better to ask and be sure than scratch your head in bewilderment!)
Well Used Valves
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alanp
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demonufo
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Re: Well Used Valves
Loss of top end sparkle is most common, loss of bottom end control is another sign that may appear.
No idea about KT77's though...
No idea about KT77's though...
So I like purple, okay!!!!!!
83.7% of all statistics are made up on the spot!
83.7% of all statistics are made up on the spot!
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pearlrider
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Re: Well Used Valves
I don't know about tubes. That sound's like what's hapening to me.demonufo wrote:Loss of top end sparkle is most common, loss of bottom end control is another sign that may appear.
No idea about KT77's though...