Jinx wrote:

> There's definitely no silver backing on these (well, most of
> them). It might be aluminium or just plain ceramic that had
> a mechanical prong connection


Hi Jinx, since I know you weld and are open
to quirky ideas, how about "metalising" the
ceramic surface by vaporising a copper wire
close to it? Like the inside of a badly blown
fuse, if you severely over-current a copper
wire it gives a very nice copper film on anything
near it.

Maybe try cleaning the ceramic surface, lay
a copper wire near it and attach it to the
welder? I've been itching to try something
like this, but had nothing to "metalise"...
:o)
-Roman

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