Hi Chris,
Thanks for your recommendation and I did go to Cupalloys.
Unfortunately, their 842 silver solder has an extremely high (for clock work) melting point in the region of 610C .... the TIX I previously mentioned has a melting point of about 140C and the Silvabrite i used, which did not work (melted the numerals due to their thin-ness!) has a melting point of about 225C. With the lower melting point solders, the heat transfer around the dial is much less and can be resolved using heat sinks. I think the 842, is used for model loco boilers, and although being their lowest melting point silver solder, is not suitable for more delicate clock work.
So ... I need a high strength low melting point solder, from a UK supplier who will send to me in Germany, with a melting point of abou 150C or less. Anyone used TIX ??? I guess that the 'straight' non-specific silver solder recommendation may be incorrect, although TIX, I understand, is 96% tin and 4% silver...
At the moment, there is really nothing to photograph...the dial seemed to be the most complex and detailed part, so I decided to get that done and out of the way first. The soldering job was not pretty.....and I'm not too proud to show it at the moment - when I've finished the dial - maybe. Smiths instruction book is really good, but it seems like a lifetime job!!
Thanks,
Allan