The AL-80A is the same amp as the SB-1000 and I had one in here for repair
and it needed a new fan too. Needless to say I found out that changing the
fan was no easy task. I refused to remove the transformer and painstakingly
replaced the old fan with a new one, and indeed it was necessary somehow to
glue or tape the nuts to the fan before installation. It truly was a
nightmare. I think I had to hack up the old fan pretty bad to get it out. As
I
recall it was a nightmare to replace that fan, but I did do it without
removing
the transformer. I recall making a slight groove in the side chassis so I
could get a long screwdriver into the work area to tighten one screw.
Replacing
this fan is certainly NOT a job for the faint of heart! Needless to say I
said a few choice words during this process! My mother would have surely put
soap in my mouth if she heard me while doing this job!!
Vic, sorry about your transformer hum, but transformers usually hum because
they don't know the words. :-) Lou
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