We have an old Lincoln LN-7 with vaccum, but no power supply. We have never used it but we are wondering what, if any, value it would have if we were to sell it. We inhereted it from the buildings previous owner and just want to get rid of it. We just dont know what price to put on it for E-Bay. Unless any one can tell us a real good use for it that cant be done with stick tig or mig. Thanks for anyones help.