Whats is 'tube rolling'?

Ive seen that term used and am curious if its adjusting induvidual tubes or is an expression for trying diffrent ones.
Thanks

bozzy08-04-2004 4:04pm

marakanetz Details Discussions Posts This discussion Message User 5,473 posts 08-04-2004 at 08:27pm Copy Comment URL Report Comment Edit Delete Literally, Rolling means taking them off the amp and letting them go along the flat surface that has an angle from horizontal position...:-)