This Quasar VH5100QW was made in early 1979 and was the clone model of Panasonic PV-1500 and RCA VCT-400. I have a Panasonic PV-1600 that was made in early 1980 with the same chassis and programmable tuner but includes SLP recording speed (3 speeds).
I am selling it for $140 (excluding shipping) right now. It's in mint condition (better than Blast's) and has all accessories (original box/packing, pause remote, hard dust cover, owner's manual, cables, etc.). Only less than 1,000 PV-1600s were made. PM me if interested.