[AMPS] SB220 Xformer labodomy

[Steve Thompson]

In message <19990218225337.AAA20049@[209.239.238.103]>, Rich Measures
<measures@vc.net> writes
>
>
>
>>
>>I have a very noisy SB220 power transformer that sounds like a bad
>>florescent ballast. Other than being noisy, the amp works fine. 
>
>€  Such transformers are normally potted in tar.   However, you could 
>have one with a potting void.  .  On my Web site, a simple method of 
>potting transformers with polyester laminating resin is described.  The 
>transformer needs to be removed in order to do the potting.  The screws 
>that hold the laminations together need to be tightened before potting.  
>
>-  later, Len

Yacht varnish appears to work well. We submerged the tfr for 24hrs and
let it dry for a week or so.

Steve

--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm