My related ebay buys since winning the stack of boards

Most of the boards are IO modules for the HP 6942A Multiprogrammer, and I don't have one of those yet.
Hence buying:
  372789928614 HP 6942A Multiprogrammer W/ 4x Relay Output 1x RES Output 1x DST HP6942 M0
  122318542675 HP App note: #316-2  Waveform digitizaton with the 6942A multiprogrammer
  401832955018 HP 06942-90006 Multiprogrammer 6942A Installation/Assembly Level Service Manual
  362605762142 HP 6942A MULTIPROGRAMMER USER'S GUIDE for the HP-85A, HP-83A and 9915A
  401832955076 HP 06942-90013 Using 9826 9836 Computers 6942A Multiprogrammer User's Guide