[R-390] Hammond organism?

Bill Guyger via R-390 r-390 at mailman.qth.net
Tue Apr 21 18:03:39 EDT 2015


Well.....you can't tell an electrolytic by its cover, replace the filters which is where the hum is coming from and might as well do the interstage caps while you have it open. I've done an amp in a B3, it's not a big deal, just a little time consuming.
Bill AD5OL
       From: Joe Foley via R-390 <r-390 at mailman.qth.net>
 To: "r-390 at mailman.qth.net" <r-390 at mailman.qth.net> 
 Sent: Tuesday, April 21, 2015 4:57 PM
 Subject: [R-390] Hammond organism?
   
Hi,
Has anyone re-caped a Hammond amplifier?  It's a PR-40, 220 watts.
It hums but does work, sounds beautiful, I did replace a shorted 6BQ5, the others tested good on the TV-10D.
I don't see any Black Beauties and all but the electrolytics look good, no leaks, no burns.

Any help appreciated,
Thanks, 

Joe
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