I've been trying to find a BSM panel jack connector for a while now. Usually, it's the 012-0127-00 that the manual calls out. I had nearly given up. But I was visiting a friend of mine who owns a Collins R390A and he was showing me the features. I noticed the IF connector in the back looks just like the BSM connectors on the 7T11A, 7D14, Sampling heads, etc. When I started to search for this connector, it was much easier to find. Now I'm not a HAM myself, but he certainly is and I know what they are many here. So it's possible this is old news. But anyone looking:
