Tube dampers/coolers effect on preamp sound?

Has anyone heard a change in sound, good or bad, when using any kind of device that damps a tubes glass bottle in a preamp ?

rmcfee02-27-2013 3:55pm

pjudice Details Discussions Posts This discussion Message User 5 posts 03-24-2013 at 04:22pm Copy Comment URL Report Comment Edit Delete I found this article in Stereophile about Audio Research tube dampers? I've tried to locate a seller online, but haven't had any luck. The AR website isn't very helpful. Anyone know where to find these or have any experience with them? http://www.stereophile.com/content/audio-research-reference-phono-preamplifier-audio-research-tube-damping-rings
mofimadness Details Discussions Posts This discussion Message User 4,934 posts 03-25-2013 at 02:54pm Copy Comment URL Report Comment Edit Delete Have you tried calling Audio Research direct or an ARC dealer?
syntax Details Discussions Posts This discussion Message User 2,193 posts 03-25-2013 at 07:21pm Copy Comment URL Report Comment Edit Delete Replace the cheap tube Sockets with Teflon units and you will get the best improvement.
geoffkait Details Discussions Posts This discussion 23,365 posts 03-25-2013 at 12:41pm Copy Comment URL Report Comment Edit Delete For those who have bottom getters like the RCA smoked glass VT-231 and Sylvania 6SN7GT and are using Herbies tube dampers, you might try moving the damper all the way down the glass to where the damper just touches the base. I recently found that a second Herbies damper attached directly to the tube base was quite efficacious.