Yep, still in Evanston, but under new ownership and signage.

Not to be confused with another Turin Bicycle further south, in Chicago.

More on topic... I soldered 'wire rope' ends decades ago with both acid-core plumbing solder and the rosin cored electrical kind with a WEN soldering gun. Before I discovered proper cable cutters, that was the only way I could manage to use diagonal or electrician's pliers to cut the stuff cleanly.

More recently used a propane torch and silver solder with a liquid (higher acid) flux for stainless cable. It's the stanless's oxide layer that makes soldering tricky, why the liquid flux works better than paste-type chloride stuff. Best to use bicarbonate of soda to neutralize any remaining acid too or corrosion is a very real risk.

I've forsaken soldering cables once I got comfy with epoxy. Now I use a cable cutter for a clean cut end, add a bit of epoxy then a crimp-on type aluminum end that gets crimped as normal while not hard enough to squeeze the epoxy out. Kinda 'belt and suspenders' approach but those ends stay on.