You know, I think your right. When I responded to Mr. T's post I was not thinking of the actual barbs in the ribbon cable or the pin and socket affair that makes up a cable termination. I would think that the pin and socket are probably made of similiar materials. BTW Tin and aluminum have very similiar coefficients. You and Tony are right though. Heating and cooling could cause bad things to happen. Another good reason not to leave my Empeg in the car!