In a message dated 7/9/02 1:50:03 PM Pacific Daylight Time, chuckschmidt@earthlink.net writes:
>
> I know that in the 1980s Santana Tandem and Peugeot did filet brazed
> lugless frames and put a brass ring inside the tube, which then melted
> during the brazing process to make a filet inside the mitered junction.
> I don't know how common this trick was...
>
Not only is this "trick" very common, but any builder who aligns before
brazing is going to "sweat" the joint prior to putting a fillet on it, so you
accomplish the same thing, with or without a consumable insert ring.
Dave Tesch
Milwaukee