Blown tube


I installed a new set of matched KT88s not too long ago on my Rogues (couple of months and maybe 350 hours or so ago)...
I've had a tube blow and one other on same mono amp stating to blacken on its top..
What might cause this so pre maturely?
gelmhirst

Showing 2 responses by gelmhirst

...self biasing, mmm.
Blown fuse or?
I did notice when amps arrived, the same socket/tube was not working, so....maybe socket?