One thing you absolutely need to keep in mind is to replace the 6550 power rectifier tube at 2000 regardless of whether you remove the 8 power tubes. If you don’t and that tube fails (you won’t hear anything in terms of sound because it’s not in the signal pathway) you can fry the board. And that is a very expensive repair......
How far over the limit can I go
I am currently just past the recommended 2000 tube life on my power amp. (Audio Research Ref 110). It still sounds glorious. Am I playing with fire here? Or, will I notice some degradation in sound that will prompt the re-tube. I think it's about $1,000 to retube.
Thanks guys!!!
Thanks guys!!!