Ernie,
Should the motion be a "push" or "pull" when trying to TIG braze?
It is a push when TIG welding, but I have been taught, and always done, brazing as a pull operation with an O/A torch. Tried a push, and it didn't work very well. It would just sort of glob on, and I kept contaminating my tungsten. Doing it as a pull seemed to work pretty well, but I still had a little trouble with the filler melting and blobing onto the work. I think my filler might be too small so it melts way to easily(1/16) running at 25 amps for 0.040 fillet welds.
Chuckle at the newbie: My first couple attempts were absolutely horrible. All I could get was big blobs of crusty black stuff that wouldn't stick to anything. Then it dawned on me, forgot to crack the valve on the tank. Oops. :)
JW