Thank you all!
I believe it's been 20 years or more since it was used, I can't be sure because the family member died last year, and the surviving family is quite old. Knowing that I listen to blues, jazz and classical music a lot they ought I'd like it, as it was supposedly a good one back in it's day. It has no wooden cover so one thing I can see about it is that one of the 4 large tubes in the very back has the glass outer part loose and wobbly with white stuff all over the inside, the other 3 look normal like other ones. Also there is 1 large transformer (the big square thing) and 2 small ones, but one of the small ones looks like it doesn't belong there, it's being held on by only 2 screws instead of 4, is narrower than the other one, and you can see a footprint where it looks like a larger one was there at one time. The family recalls that it may have gone in for repairs once many years ago. So it looks like another sojourn in the repair shop may be in order. :-(