[HAM] B3 Swell Capacitor

[Scott Hawthorn]

At 07:22 AM 2/11/2008, Jordan Kersten wrote:
>Well, it was not the tubes.  It also was not even the swell capacitor 
>box.  It was the matching transformer!  Being I did all my trouble 
>shooting on the spot at the gig friday night, I couldn't really get an 
>accurate diagnoses as to the problem.  I went back during the day on Sat 
>and spent about an hour with it.  I figured it wasn't the tubes because 
>when I tapped on the tubes, no problems.  If I would tap on the swell box, 
>bingo I got this feedback noise.  Anyway, all the parts inside the swell 
>box were nice and tight so I was stumped.  I then started messing with the 
>transformer.  If i took the metal shield off, the problem went away.  When 
>I put the shield back on, there came the feedback sound.  If I got that 
>metal shield in just the right spot, it wouldn't make the noise.  What I 
>ended up doing was keeping the shield on and bending the "L" mounting 
>bracket that attaches the transformer to the cabinet.  I bent it just 
>slightly toward the side of the cabinet.  I guess the transformer was 
>vibrating on the metal bracket because when I bent it in, the problem went 
>away.  I have never had this problem or herd of this problem before.  Has 
>anyone ever experienced this?

Congrats. Once again, you have Stumped the Chumps!



-- 
No virus found in this outgoing message.
Checked by AVG Free Edition. 
Version: 7.5.516 / Virus Database: 269.20.2/1270 - Release Date: 2/10/2008 12:21 PM