Found on the forum reader, thanks Retro and gagaeyes! One of these just sold on ebay, I was going to buy it but just missed the sale while waiting for another unit I had bid on.
Ya, I saw those, I kind of wanted one but my luggage space was limited so I ended up with other stuff. For other travellers to Japan when the world opens back up, go to Japan, have fun!, and buy lots of boomboxes!
Japan is my Mecca, Tamiya RC, Hi-fi gear, portable hi-fi gear, robots and games consoles. I fear I'll need a container to bring it all back in!
"For Advanced Listeners!" I think I have this CD player, the big one, mine's kind of flimsy for a Technics.
The Technics You Oz from around 1976. Just posting because this is really neat, how cool would it be as a kid to have a boom mic for singing? I bet the accessories are impossible to find. I think I have a SL-23 out in the shop, I'm reading reviews and they say this is the best belt drive Technics TT. I'm pretty sure mine is standard gray in color.
Finally found some info on the "1982" unit above, its the Technics SA-C06 from the 1980 catalog. Looking at the side view above it doesn't have speaker mounts that I can see and the speakers are a few more pages back in this catalog found over on gromit.dk. If those blocks are 16" tall, this is a big boombox!