Hi, I just got what I thought was an early Altec 802 driver, but when I got it home and looked at it harder, it looked too big in diameter. It's 5" instead of 4.5". It has been pretty beaten and battered so I couldn't read the decal. According to the '43 Altec catalog the 901B is 5" in diameter, so I'm guessing this might be a 901B, cut I can't be sure. I can't find any photos of it. Can anyone recognize this driver? Also, it looks like the diaphragm is fried, so I was wondering if (and hoping that) an 802 diaphragm might fit.