My friend In IN finally turned up a copy(15 years old) of the micro welder that Oscar used, his name is
Floyd James Hanson
407 Barnum Rd
Rockford, IL 61109
This is 15 year old info but it may help in tracking this guy down.
He used TIG and he would send you a piece of very thin shim stock welded together with a quote.
Hope this helps track the guy down.

bill