Vintage Onkyo A-7040 Integrated Amplifier

I'm selling this vintage amplifier that my father owned for many years.  I don't know much about the amplifier, but it seems to be in pretty good condition for its age. The volume knob seems a little loose, but I believe it could be tightened fairly easy.  Its weight is approximately 20 pounds so shipping costs will be expensive.  Item will be shipped with plenty of protective padding.  Item is sold as is because I have no way of testing other than plugging it in and turning it on.