I recently acquired my great grand pop's hand-build fixie from the 1920's. He was a pro racer/builder (that's what I'm told at least). After wrestling with the idea, I decided to rebuild it. It's a lugged steel frame that is very light (the metal is incredibly thin). I dropped it off for a powder coat job today and my powder guy seemed a little nervous about dealing with it. He had concerns about how the tubes were set into the lugs. He feared that the joints might melt in the oven if they were soldered.
Now, I do know a fair share about bikes, but not about 90 year old lugged steel construction. Any ideas?