I'm replacing a cable on a SA 3 speed and have crimped on a derailleur end-cap through the adjuster barrel that attached to the indicator chain but the torque when shifting always eventually rips these end-caps off. Also have had the same problem at the shifter end. I even resorted to soldering it on and didnt work (admittedly because the solder didn't flow well on the metal)

What's the trick here?

Do you have a picture? I use a universal type anchorage or a NOS cable for the hub end. If it is pulling out on the shifter end, your shifter may be damaged. You can braze a small piece of brass tubing on the shifter end if you don't have the proper cable. (I will have to check and see what sized tubing to use)

Aaron

Maybe you need this.

https://www.theoldbicycleshowroom.co....T&productid=97

I've ordered from this outfit before. Not cheap, but reasonable, and they ship promptly.

A good source for such things on this side of the Atlantic is RetroBicycleSupply: https://stores.ebay.com/Retro-Bicycle-Supply. And I've also seen 3-speed cables with anchors sold in some big-box stores such as Walmart.

Neal