[R-390] Potting tar in power transformer

[AI2Q]

 ... make that glass tape.

HI HI

== Alex
----- Original Message ----- 
From: AI2Q 
To: Steve Hobensack ; r-390 at mailman.qth.net 
Sent: Tuesday, May 29, 2007 8:19 AM
Subject: Re: [R-390] Potting tar in power transformer


Absolutely right on Steve.

I recently repaired a primary-to-secondary short in a HV xfmr for a 
Heathklit SB-220 kw amplifier. Removal of the end bells revealed the 
breakdown in insulation, and that the windings themslves weren't burned 
open. A thorougf cleaniung, followed by an application of galss tape and 
fish paper did the trick.

Vy 73, AI2Q, Alex in Maine
ARRL, FOC 1861, AWA, QRP-L 687
http://users.adelphia.net/~alexmm/ai2q.htm