I actually have a chart that I use and log in the ggod and bad points in my current tubes..Comparing with the new rolled tubes is by comparing the good and bad points of the tubes you are trying to replace..Its just kind of a scoring system..Its better than trying to trust your memeory..
Question on tube rolling
If one should let the tubes really warm up and settle in, say 30 - 60 minutes before doing any serious listening, how does one go about rolling tubes for sonic comparison. Plus, do you pull the tubes when they are hot? Also, don't tubes need some break in time to sound their best?
Trying to learn.....
Trying to learn.....