SMD Parts Wanted (CDC 9762)

I was contacted this week by a parts broker looking for SMD heads. These are the part numbers: 75010102; 75010103; 75010105. Unbelievable to me is that a bunch of SMD's are still in active service at a government facility. These drives have to be close to 40 years old! If anybody on the list has some of these heads and wants to sell, contact me and I will put you in touch with broker. He makes a living reselling these old parts, so I imagine that he does very well. And might not be overly generous. You will have to negotiate with him - I'm not going to be a middle man. Used parts may be of slight interest though I discouraged him from using them. It just blows my mind that some SMDs are still in service. I would love to know the story here. Billy Pettit bpettitx at comcast.net