That is a great find. If I'd known you'd find electronics at this baby-ganza I would've gone!
It may need new caps since they dry out over time... but I'm not sure.. you'd have to test.. Of course, the fuses could be blown because of the previous user's lack of know-how around electronics.
I'm not sure of the year.. Technics was owned by Matsushita for a long time but that was recent, like 90's.. Was Technics ever its own company? The 'by Panasonic' leads me to think it could be late 70's but the styling is late 60's so, I have no clue. I know there was a long lull in mid-fi audio styling from the late 60's to mid-80's.
-C