Do tube dampers really work?

I am also in the Herbie continuim...nice little tweaks, bout' half way down as well..

Owned a audible illusions ,made an improvement

I am using Shun Mook Valve Resonators, which are more than tube dampers, on the input and output tubes. I could not believe they work pretty well on my system (Berning amp) with more musical, lively and lush but detail... The Valve Resonators can adjust the sound you want. I will try them on my preamp later. Good luck.

1markr,

I couldn't tell the readings before and after using the Hal-Os. You may want to contact my friend (in Germany) if you're really interesed. He could be reach at info@audiotubes.de.

FYI he's a honest tube seller and he has to measure tubes, to grade the good tubes and to scrap those bad tubes. He measures tube parameters and microphonic. So I sent him 2 sets for measurement of microphonic reduction.

Hee,
When tube is microphonic it's definitely bad. Dampers help to run that bad tube with more time "unaudiable". Try to compare readings on half-dead tubes using Hal-o dampers.