I built a bike frame in Reynolds 531 back in 1978 – and I won a road race on it! I used a 5-pint paraffin blowlamp to silver-solder the frame – before I acquired a Sievert outfit. The frame is a rather sad-looking rusty affair hanging up in the garage now, because it needs a new down tube and a new bottom bracket shell and it isn't worth the effort – but I can't bring myself to throw it away!