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
fatparrot Details Discussions Posts This discussion Message User 1,314 posts 12-21-2005 at 10:00pm Copy Comment URL Report Comment Edit Delete My opinion regarding Tube burn in: 24 hours- Noticeable difference 72 hours- You're 90% there 100-200 hours- You're home This is with the amp playing, not just idling with power on.
tfkaudio Details Discussions Posts This discussion Message User 591 posts 12-21-2005 at 10:39pm Copy Comment URL Report Comment Edit Delete About an hour. I have yet to notice a break-in difference with KT88's or 6550's. Input tubes are another story... Cheers.