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Old 17th Aug 2022, 9:53 am   #5
Denis G4DWC
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Join Date: Oct 2006
Location: Brackley Northamptonshire, UK.
Posts: 240
Default Re: 'Spirits of Salts' as soft solder flux?

The first time I came across this term was when an elderly friend, ex RAF, and now departed, explained to me how he made a radio whilst in a POW camp during WW2. Amazing how resourceful some of these guys were.

He assisted the Camp Dentist so was able to export!! a few items including some Hydrochloric Acid which he mixed with Vaseline, that came in the Red Cross parcels, to make a soldering flux.

Denis
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