Tube vibration control

Ive bought both rubber rings and metal “heat Dispersion” jackets.  Tried the rubber rings on small and big tubes on preamps and amps and didn’t really hear any difference. But I have stayed with the metal jackets as I have sensed some differences;  no technical tests just my own ears.

Having been around the hobby for a while, I've collected many tools. Tool dampers are one. After a change, I'll try stuff to see if I hear an improvement. If I don't, it goes back in to storage. Currently in my system I have 15 tubes and not one damper. 

Thanks - those are sensible answers, on both sides. I think I will first play with support of the electronics. I have three kinds - Brass cones, Cardas wood blocks, and the rubber/cork sandwich. I'll get the preamp/amp well situated before I decide how to deal with the tubes themselves. Thanks for thinking with me.

David

I've finalized my approach to vibration with a Quadraspire Reference X stand for equipment.  I've moved through several different stands and found this one most effective using tube and/or SS gear;  providing lowered noice floor, cleaner more open reproduction and better attack.

Townshend platforms do the work for my floor standers.  Before that, Gaia footers. It's really not imaginary as the positive effects stand out clearly.  The move from Gaia to Townshend reflective of price performance.

I tend to be more critical before immediately accepting change as improvement.

Everything should vibrate in a right way. You do tuning and fine tuning. I wouldn't even think about putting that stuff on tubes. Yeah, you need the right tubes and work on finding the best stand for each piece of the equipment, starting with the source. A lot of work and a lot of critical listening.