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  1. jackrubin

    PDP-12 at the RICM

    "It should be relatively easy ... "
  2. jackrubin

    DEC units on ebay

    yep - down to my last two storage lockers :>)
  3. jackrubin

    CHM Oral History of Tom Stockebrand - TX0, LINCtape, DECtape, VTXX, flipchips, more -

    Great trip - and all expenses paid! The end of one chapter and the beginning of the next in the workstation world.
  4. jackrubin

    CHM Oral History of Tom Stockebrand - TX0, LINCtape, DECtape, VTXX, flipchips, more -

    Recorded in 2019 and just released - . Tom is a great engineer and a great story teller - long interview, but it all sparkles with info and his good humor. He started a Lincoln Labs with Wes Clark where he worked on early mag tape systems before moving on to DEC. Worth listening too - and...
  5. jackrubin

    TIP: Found a ""Dec Linc Eight" for sale

    Doesn't seem like there are many "right" collectors "left". :>(
  6. jackrubin

    CAD tool for DEC style mixed logic

    I now have 5 LD12 Front Panel boards in hand. One for me, one for Paul, one for Marty, one for smp (maybe?) + one available. Cost is $25 per board + shipping from 60611.
  7. jackrubin

    CAD tool for DEC style mixed logic

    Thanks - I knew you had uploaded some files a while back but got the impression they weren't quite finalized regarding switch(?) placement. I'll take a look and see if I can order a set before Chinese New Year (I move slowly these days). Jack
  8. jackrubin

    CAD tool for DEC style mixed logic

    Mmm ... yes ... and then there was the LD-12 front panel PCB that was rumored as a Christmas gift several years ago ...
  9. jackrubin

    8KW Plessey core UNIBUS board PM 1105 - Looking for Maintenance manual and/or Engineering drawings

    That's the purpose of this forum - share what you've learned and learn from others!
  10. jackrubin

    Dual purpose M8560 Serial board

    I found John Winans' (John's Basement) KiCad tutorial very helpful - though I watched a lot of it at 1.25-1.5x playback speed. Playlist here: https://www.youtube.com/playlist?list=PL3by7evD3F51fKkyrUbH-PCdwPCWc9F8a Don't be put off by the number of videos - he tends to ramble but discusses a...
  11. jackrubin

    DEC units on ebay

    Might be that a colonic wasn't going far enough ... :>)
  12. jackrubin

    Replacement tachometer sensor for DEC RA80/1/2 drives ...

    I'm not aware of frequent transducer failure on the RK series drives, but there are several versions of the 14" platters (DEC + others) that use different sector numbering. Being able to read an OS/8 platter (16 sectors) on a PDP-11 machine that expects 12-sector platters would be very helpful...
  13. jackrubin

    Replacement tachometer sensor for DEC RA80/1/2 drives ...

    Welcome Bob, and bravo! Now, one for the RK05, please. And the rest of the electronics to allow the RK drives to spoof the transducer count to allow interchange of 12 and 16 sector disks.
  14. jackrubin

    Attaching DEC Handles, the Right Way

    Here's a set used to attach a Stu Phillips handle (aftermarket) - one just right, one punched too hard.
  15. jackrubin

    Attaching DEC Handles, the Right Way

    I've been pretty happy with the Fiskars eyelet setting tool (Amazon) but it takes a little practice to get a clean peen without splitting the rivet since it is slightly oversize. Generally several lighter impacts to set the rivet cleanly.
  16. jackrubin

    Restoring a DEC PDP-11/05

    Soak a piece of thin cardboard in contact cleaner and move it in and out between the contacts several times to clean inside the slots without damaging the contact springs.
  17. jackrubin

    Restoring a PDP-8/L

    Beware - there be rabbit holes here!
  18. jackrubin

    VT100 Case Fasteners

    Check out auto body inner door panel fasteners for similar parts.
  19. jackrubin

    Flip-Chip Module Tester, bring-up and experimentation

    Great to see continuing progress on the flip chip tester.
  20. jackrubin

    Mini-Omnibus backplane for debug and minimal system

    Gold fast-on connectors AND gold screws? Or is that just the lighting? Nice -
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