new tube break in

hi guys,
what is the usual break in period for new tubes for a amp?i have quicksilver v 4`s and i am looking for new kt 88`s
thanks
al

alpass12-21-2005 1:52pm

alpass OP Details Discussions Posts This discussion Message User 174 posts 12-21-2005 at 07:31pm Copy Comment URL Report Comment Edit Delete this is an add on.is anyone using penta/shuguang kt88sc`s?what`s your opinion and what`s the breakin time? thanks
alpass OP Details Discussions Posts This discussion Message User 174 posts 12-22-2005 at 07:29pm Copy Comment URL Report Comment Edit Delete big difference of opinion,meaning tubes are great out of box vs. 100 plus hrs. to burn in
alpass OP Details Discussions Posts This discussion Message User 174 posts 12-22-2005 at 09:21pm Copy Comment URL Report Comment Edit Delete are they from penta