Tim Watts wrote:

I'll have to look into that - I've come across most methods of copper
work, but this is truely a new one on me

Thanks for the detailed description!

Unfortunately, Wensum Welding Supplies has no website and seemingly, no
e-mail address (got his card here).

However, it's a good place to deal with, the owner knows his onions, and
stocs a very good range of materials and equipment.

I've got from him a rather nice oxy-turbogas welding set. No idea what
turbogas is (I suppose I could do search) but the flame goes up to
3,600° C - and that's good enough for me.

He tells me the stuff will join other metals, but I've only used it on
copper. (I tend to use manganese bronze or silicon bronze for joining
steel or iron, nickel or cast rod on cast iron, and silver solder or low
melting point spelter on brass.)

And if anyone knows where I can get a coil or bar of tin, I'd be most
grateful to be told.

--
Rusty