[BC] Irons for silver soldering copper strap

[PeterH5322]

>Use 15% sil-fos and a swirl-jet torch. ( Turbo-Torch is one brand )
>These torches fueled with MAPP gas will get adequately hot to do the job
>properly.

Sil-Phos is definitely the way to go.

MAPP is probably best of the single-component solutions, but I always 
used an acet-air torch for this purpose.

Perhaps the best setup is oxy-acet with a Victor "aircraft" handpiece, 
and the appropriate sized heating tips.

Ultimately, it depends upon what one is doing, and if I was making a 
nine-tower DA-2 phasor on-site and by hand, I would definitely be using a 
Victor oxy-acet setup and Sil-Phos-ing all the hundreds of joints.

Sil-Phos has very good "gap filling" qualities.