I'm almost 'done' with my 70s Motobecane Grand Touring rehab... but I need to replace the shifting cables. Unfortunately, I didn't realize the shifting cables I bought did not have the correct ending for the friction shifters, do anyone know the correct ending so that I can buy this online? Can provide pictures if that works better, but it is a "flat" disc instead of cylinder (which is what the cable I have uses...)

Thanks in advance!

EDIT: I see loosescrews has one with a double ended, unfortunately it is a lost of cable for my needs