Originally posted by Sean H Are they similar looking to the silicone ones at the ebay link Adam posted? If so, looks like you would need to use a minimum of two rings for small signal tubes and perhaps a minimum of three for power tubes like an EL84?? If that is the case then I would need at a minimum of eight for my MG Head and then another couple for my tube DAC which uses a single 5751 for a total of 10. So it would be about $40 plus shipping. Does that sound right? Or are you using just a single ring on your tubes? How many rings do you recommend for a tube?
The link Adam posted was 8 rings for $8.99.
Andrew, According to the seller, they are rated to 400 degrees. Melting would be unlikely if that's so.
I jumped the gun, thinking these were like the 3M brand ones. I would guess the teflon makes it more impervious to heat. Has anyone had these on for an extended period?
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