I'm trying to do some research on vintage RCA mics. I'll be doing the usual searches, and maybe I'll post some of the better links here so they are collected in one place. But I'd like any tips that you can give me. Particularly, any pointers to models other than the 44's and 77's that are worth looking into. Things to watch out for / avoid. Also, places to get mics reribboned/refurbished. Of course, if you can give me pointers to recent prices that would be great.