Audio Research d79 blows plate fuse

My audio research d79 blew the plate fuse when i turned it on this morning.Change fuse and it blew also.Any help would be greatly appreciated.

pka02-02-2014 3:08pm

hifigeek1 Details Discussions Posts This discussion Message User 770 posts 02-03-2014 at 07:49am Copy Comment URL Report Comment Edit Delete Output tubes. When were they replaced last?
rodman99999 Details Discussions Posts This discussion Message User 6,156 posts 02-03-2014 at 02:31pm Copy Comment URL Report Comment Edit Delete Hopefully; it's simply a tube. Another possibility is a leaky or shorted coupling capacitor(especially based on the age of the amp). If so; it will either be the 2uF or .22uF(bypass)/600V, mylars.
pka OP Details Discussions Posts This discussion Message User 4 posts 02-03-2014 at 11:11pm Copy Comment URL Report Comment Edit Delete Thanks for the response.I'm gonna get a new set of tubes and hopefully that is all it is.
pka OP Details Discussions Posts This discussion Message User 4 posts 02-03-2014 at 11:14pm Copy Comment URL Report Comment Edit Delete Thanks for your response.I'm gonna get a new set of tubes and hopefully that will take care of the problem.