The torch works!
And now the only problem is the torch operator :-) (defects; (1) the NDS canti stud is crooked; gotta melt it off and rebraze it, (2) I don’t have complete brass penetration at the back of the fork crown+fork leg joint, and (3) there might be a place on the steerrube+fork crown joint that doesn’t have complete brass penetration.)
I need to set up a basin so I can set this thing in it to soak for a hour or so; it will look a lot better when the slag-filled flux is washed away.