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Tube rings for power tubes?

I recently bought a set of 6550 power tubes that came with tube rings. ARC has long been putting rings on their preamp tubes and there seems to be no question that doing so helps their sound. Has anyone had experience using rings on power tubes? Thanks.
arahl
newbee
4,794 posts
 
FWIW, I'm with Nsgarch's posts re his actual experiences and the requirements of power tubes, although I've never used Herbies and my power tubes were all common pentodes. No microphonic problems to solve in the first place.
ptmconsulting
1,000 posts
 
Be sure to try them both with, and without the rings. I found that the life got sucked out of the music with rings on my EL34's.

Herbie's are probably the best out there for tube dampers that don't kill the music, at least on small tubes.

Enjoy,
Bob
cmo
471 posts
 
Don't take this as gospel, but I am pretty sure Herbie's offers a 30 day money back on all of their products. I know Steve does with his smaller tube dampers, record mats, etc. FWIW, I have his smaller tube dampers on my amp and really like them.

Chris
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