[Amps] Fan noise

[Gary Smith]

Something I can add is when I first got 
this amp, the noise was louder than the 
AL-1500 that I'd been using. I removed the 
squirrel cage to look closely at it and 
there was a thin layer of dusty looking 
material over the blades. The P.O. wasn't 
a smoker so maybe it was just ionized dust 
particles that collected on the vanes over 
the years.

I washed the cage thoroughly with a power 
washer and made sure all the material was 
gone and when I re-installed it, there was 
noticeably less turbulence & noise.

73,

Gary
KA1J