NYListens
CBGB & OMFUG
Hi, That looks exactly like a 600-S that I did a cabinet for a guy in Spain (its shown on my website). Fisher did things like that, my 800-C is not labeled as such on the front , simply "Executive", then when you look at the serial number section it lists it as 800-C. Yours is a beautiful receiver, I have been looking for that model for some time. You lucky guy.
You mean a 500-S? I don't think a 600-S exists. If it does, I sure would like to see some photos of it. I have a 500-s and it does look a lot like a 600 and they share the same dimensions and output tubes. However, there are some serious differences in their electronic design. The 500-S is much closer to the later Fishers 500 B/C and 800 B/C.