Discussion in 'Amps/Cabs Tech Corner: Amplifier, Cab & Speakers' started by blaster, Feb 17, 2012.
I saw them advertised and wondered if they are valid or "snake oil"? Anyone use them?
There are numerous reports that they work and numerous reports that they don't. Like almost everything in life, it depends on the particular situation.
I've used them on some combos where I was getting rattle no matter what tube I tried. I think they are harmless. Some people believe in them even if you don't have tube rattle because they might make your tube last longer from not being shaken.
Fender amps have those metal caps with springs in them for the tubes. Same effect.
You can also get a tube of automotive head gasket glue and just dip the tips of the preamp tubes in that. sticks well and heat resistant. One tube can do your whole amp collection and cheaper than those rings.
I've had some luck with them, not enough to sear by them. But you can get them for cheap...30¢ of so for the silicone rings.
Do NOT pay $3 or $10 or whatever for them. The 30¢ rings do the same job.
Where do I find the 30 cent ones?
Weber sells them, but you'll pay more on shipping than the rings.
They are just silicone O rings, often you can find them at hardware or auto stores/sites.
OK, I'll try the local speed shop. Thanks
They make good tone dampeners as well.
Some of the hi-end hi-fi guys swear by them. Most of those cats are idiots though.
That's not been my experience at all. I think simple silicone O-rings do nothing or next to nothing. The only things that have made a clear difference in my experience are the ones from Herbie's Audio Lab, which are pricey but can be useful if you have a problem, but not really necessary with guitar amps -- after all a lot of people like the color and liveliness of a little acoustic breakthrough from undamped tubes in guitar amps. But I actually use 'em on my small combos. If you want to try some, my experience says don't bother with silicone o-rings, they don't really provide much if any damping.
I've seen heavy brass ones with some sort of shock mount system for hi fi people too.
I gotta wonder what these do for heat dissipation............