Can you name Billy Joel's 70's keyboard?

Question

I am a keyboard player and I would like to know the name of Joel's
keyboard used in his 70's gigs.
I have been looking to have that sound, but nothing modern sound
half as good. On YouTube clips you can see it. It's a bulky, rectangular " beast". It souds like 60's electric music, although he used it through the 70's in songs like " Just The Way You Are".

Answer 1

Can't help, but good luck. Just want to say Billy Joel ROCKS! Was my favorite artist during high school and is still in my top 10.