[TMC] GPT-750 HV transformer

[John D. Kopke]

Hello all,  I finally have some inspiration to work on my GPT-750 (A2) and plan to 
use it as a CW transmitter.At the moment, it's only capable of CW . I'm starting 
from the bottom -up working in the power supply section ,checking wiring and 
cleaning . My high voltage power supply (now sitting in the garage) has had some 
problems in the past apparently due to arching, and has been modified to some 
extent .The top of the the transformers outer steel shell has been cut off 
(neatly ) around the edges and two of the taps.  I recently noticed the #6 tap/stud 
is broken off inside it's threaded socket . How should I go about repairing this ? 
I have not attempted to remove the broken screw as to not damage it any further. 
Also, I'm wondering if there's anyone in the Baltimore/Washington area with 
expertise in repairing potted,(for lack of better term ) transformers. Before I 
noticed the broken stud I planned on cutting some sheet steel and recovering the 
cut area with JB weld ,the edges are very sharp where it has been cut open. I see 
four crater-like holes in the top of the XFMR's potting material, apparently where 
standoffs were? I'm wondering what could be used to fill in those area's.But the 
firt concern is the broken standoff/stud.  Many thanks fo any insight on this 
matter.  All the best , Andrew Kopke, KB3JUH