@PeterT Yup! Same stuff. This is the article:
"The filler material is a copper, silver, phosphorus alloy market under the trade names Sil-Phos or Silvaloy. More specifically the alloy we used was Silvaloy 15 which is 15% Silver, 80% Copper and 5% Phosphorus. The alloying of copper with silver and phosphorus lowers the melting temperature of the main alloy copper. Pure copper melts at 1984 degrees F and the Silvaloy 15 filler material melts at 1190 degrees F. You can see just from the melting temperatures that we can weld copper at a much lower temperature. I could see how this might happen by accident in the weld shop. Many of the TIG welding rods look similar because they are copper plated to keep them from oxidizing. If somebody accidentally used some of this brazing alloy to TIG weld then it would be pretty obvious that it could be used."
It makes sense, considering some people do brass brazing using a TIG welder. I'm sure a lot of guys here have seen this before, but if not, check it out! It's beautiful.