Here’s how I tin the ends of my flex cables: Purchased an iron pipe cap plug, ground the threads off, clamped the square end in a vise, added chunks of 95% Tin/5% Antimony Plumber’s Solder, heated with a Propane Torch, submerged the rosin coated cable ends into the molten solder. Works like a Champ!!!
See DaPic . . . .
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