keepiru1 was right on the money. It's more than likely that this radio is illegal to even use. The law in 1991 was passed to make sure that all radios are "narrow band" radios. The narrow band gives us more channels to use in our assigned frequency range. An old radio like this is going to transmit on 3-5 adjacent channels, if not more. You're not going to want to use this radio to fly with, and more than likely most clubs won't let you use it at their field. You would be better off getting a new radio and keep the old one as a "museum exhibit".
Ken