Re: 'Spirits of Salts' as soft solder flux?
If it's metal chassis soldering, Mark, then you may simply not have enough heat to get whatever flux you hae tried fully active. A brute of a soldering iron is needed.... 200W or so.
As plan B a bolted solder lug is a viable alternative, even if not original looking.
If it's wire out of a transformer, then "heavy formvar" varnish doesn't solder through and no flux will touch it that wouldn't destroy the copper. The usual tool is a set of motorised spinning blades which machine off the varnish. This is the varnish for proper serious transformers, designed to run hot and survive.
David
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Can't afford the volcanic island yet, but the plans for my monorail and the goons' uniforms are done
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