It's from the early to mid 1980s, it's not worth that much at all, but it was cheap, and it was worth the $5 if it worked. I am sure I can sell it for $5 as a parts unit. I used to have a Sansui G-6000, but that is gone, and I had an old Harman Kardon 630, that I gave to a friend.
I am hoping to pick up something this weekend when I am in Seattle.

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2018 Subaru Crosstrek (Mine)
2019 Subaru Outback (Wife's)
1979 300CD (sold)