Quick Question.....I had a blown tube which took out a 10 ohm resistor as well......Picking through a bunch of pulled 6550's from previous repairs and the amp started to make all kinds of hissing and static sounds......turns out it was one of the 12AU7's that crapped out....now I have a thump sound in the speaker every 4 or 5 seconds.....and the red bias light for BIAS 2 will flash every time it happens...I even removed all the tubes except for two and switched them to different pairs of sockets...still the same thing....also removed the pre-amp tubes and no difference...anybody ever run into this kind of issue before?? It is getting late here so I am going to sleep on it tonight and try it again tomorrow...I have a schematic but it is for the older version.....this amp has the bias lights on the back panel.....hopefully somebody might be able to shed some light on this one.....
Cheers
Cheers
Comment