Steve W's recent experience of these on his Pacific tubes has got me thinking. I run 70W/ch Nat Audio SE2SE monos using a quad of 1948 GE 211s. And my Nat Audio Utopia pre uses four 6N1P and two 6N6P driver tubes.
So, there are three ranges of Herbies dampers. The cheaper Ultrasonic SS and Rx, and the pricier titanium ring Hal-O IIIs. It's these latter Halos I'm likely to use on my big super hot 211s.
A few Qs.
First, can you "overdamp" a tube? And is there a risk of that w multiple dampers per tube?
Also, is it pure trial and error to see how well they work?
For instance, w my amps, I cannot install dampers near the socket, chassis top plate precludes this. But I have approx 6" of total tube height to play with. So, go for one, two or three Halos per 211?
My driver tubes are smaller and don't heat up as much. Still stick w Halos for these? Or go for the SS or Rx alternatives?
And most importantly, what am I hoping for/expecting to hear?
So, there are three ranges of Herbies dampers. The cheaper Ultrasonic SS and Rx, and the pricier titanium ring Hal-O IIIs. It's these latter Halos I'm likely to use on my big super hot 211s.
A few Qs.
First, can you "overdamp" a tube? And is there a risk of that w multiple dampers per tube?
Also, is it pure trial and error to see how well they work?
For instance, w my amps, I cannot install dampers near the socket, chassis top plate precludes this. But I have approx 6" of total tube height to play with. So, go for one, two or three Halos per 211?
My driver tubes are smaller and don't heat up as much. Still stick w Halos for these? Or go for the SS or Rx alternatives?
And most importantly, what am I hoping for/expecting to hear?