Picked up one of these the other day very cheap, and made it shine again, replaced all the bulbs too checked everything and it sounds superb.
I have no interest in receivers so I decided to sell it anyway, but certainly looks and sounds impressive for what it is. If you are interested let me know.
Hitachi mosfet receiver from 1978. G-Class.
Very powerful and with a THD 0.09% @ 95wpc
Has a phono stage, and auxiliary inputs, as well as two tape inputs. All RCA connectors at the back.