Hello, first post here. After finding a B215 on the street(!), plugged it in to confirm that it was in fact dead. Oh well, I was up for the challenge. I have since recapped it, which has fixed the completely dead situation. This brings me to the current situation - cleaning up the transport. I noticed one of the drives was missing a cap. My question - how do these caps (forgive me, not sure what these are called) attach? I have a pretty well equipped shop and can make a suitable replacement if need be, just wondering how it came off and what a good solution might be. Also, has anyone found a suitable replacement (read: something I can just buy from McMaster Carr) for PDP65? Thanks in advance!