I'm looking for a beginner keyboard with
basic midi at hopefully a low cost. I found
an ad for a Technics K350 keyboard from the
80's, no manual, one broken key, has midi,
asking 145$US or best offer. What is this
keyboard like? I need to find an estimate of
the fair market value for this keyboard?

Thanks,
mf

I did end up buying it for 70$US, so I guess
that is what it was worth. Sounds great, am very happy with it. It has a non-compatible 2 channel midi, so cannot connect to computer but that is ok.