Image Map Image Map

Search:

Type: Posts; User: TJ_Mossman

Page 1 of 12 1 2 3 4

Search: Search took 0.01 seconds.

  1. WTT: PDP-8/f or m (with or without cards)

    Hi All,

    I'm looking for a PDP-8/f or m. At a minimum I'd like the chassis with PSU, front panel, and backplane as I already have enough spare OMNIBUS boards to build up a basic system, although...
  2. Since buying the logic analyzer, most of the...

    Since buying the logic analyzer, most of the chips that I'd initially suspected could have issues appear to be fine.
    Meanwhile I found a copy of the TDFRMT source and produced a listing from it,...
  3. Yup, looks like there's a problem with my Major...

    Yup, looks like there's a problem with my Major Registers board. Fortunately I have a spare that doesn't have this problem, but I might as well run all the MAINDEC's while I'm at it...
    I can now at...
  4. Hmm, somewhere along the way I think the CPU has...

    Hmm, somewhere along the way I think the CPU has developed a fault...

    I found Mike Thompson's simple TD8-E tests in another thread and tried checking the Command and Data Registers, and found that...
  5. These have all since been found.

    These have all since been found.
  6. Jack, Thanks, I'll have some more updates to...

    Jack,

    Thanks, I'll have some more updates to it soon. The past couple of nights I've been busy with the logic analyzer, but so far haven't found anything suspect.

    These are the ones I bought,...
  7. I did, it seems pretty close at 8.41μs. In the...

    I did, it seems pretty close at 8.41μs.

    In the meantime I bought a cheapo logic analyzer so I could get a better look at things than with my 2-channel scope. I'm not sure if I'm onto something or...
  8. Hmm, it looks as if I may have found my first bad...

    Hmm, it looks as if I may have found my first bad part - an SP380 at E17. The inputs on pins 11 and 12 both go low while trying to run the formatter, but the output (NORed) on pin 13 stays low.
    Pin...
  9. I tried a couple of tapes that were known to...

    I tried a couple of tapes that were known to read, write, and format correctly on the 21st, but those were the tapes I stared having trouble with a few days ago.
    I tried to format another tape just...
  10. September 4th: While troubleshooting the left...

    September 4th:
    While troubleshooting the left motor on the left drive, I discovered that the G847 for that drive had a bad MPSA55 transistor at Q5. The base and collector showed a dead short.
    63733...
  11. "Fixed". Kludgy but it'll do for now, at least...

    "Fixed". Kludgy but it'll do for now, at least until I find some fresh wire in the right gauge and colours.
    63723

    More grime... The fan was a bit hairy too.
    637246372563726

    But no more!...
  12. DECtape adventures (Restoring a TU56 and TD8-E)

    Hi All,

    Recently I bought a TU56 for my PDP-8/e setup, so thought why not document my progress here?

    The story so far...

    July 6th: Bought Drive from Al Kossow.
    August 8th: Drive safely...
  13. Wanted: Someone to test a KD11-A board set.

    Hi All,

    I'm stuck in England right now so haven't been able to get any work done on my 11/35 that's in California.
    I do however have a complete KD11-A board set here, and most of a spare set back...
  14. Thanks for looking! No worries about the missing...

    Thanks for looking! No worries about the missing flip-chips.

    Please post pics of the rest! I'd be interested to see what state the PDP-5 and 8s are in. If you use a service such as imgur, you...
  15. Hi Tom, Very nice find you've got there! I'm...

    Hi Tom,

    Very nice find you've got there! I'm not sure if I've ever seen a 338 Display Console in private hands, if at all come to think of it. Much of your stuff is historically significant indeed...
  16. Wanted: Misc TU56 parts for use with a TD8-E

    Hi All,

    I'm looking for the following parts to configure my TU56 for use with a
    TD8-E:

    G742 (Positive Logic Jumper Card)
    M960 (TU56/TD8-E Command Cable Connector)
    M961 (TU56/TD8-E Data...
  17. Replies
    2
    Views
    532

    I'm not sure how active he still is. I last saw...

    I'm not sure how active he still is. I last saw him on ClassicCMP a couple of months ago.
  18. WTB or WTT: OMNIBUS controller for DSD 440 (DSD 440-2131)

    Hi All,

    I'm looking for a DSD 440 disk controller for OMNIBUS systems.
    I'm looking to buy or trade with some of the items in my sig, along with perhaps some spare OMNIBUS/UNIBUS/Q-Bus boards I...
  19. Replies
    0
    Views
    161

    Wanted: CTRL key for Sinclair QL

    Hi All,

    I'm looking for a CTRL key for a Sinclair QL. Only the key is needed, not the stem.

    Thanks
  20. Replies
    7
    Views
    652

    WTB: Paper for sprocket-fed ASR-33

    Hi All,

    I'm looking for some rolls of paper suitable for a sprocket-fed ASR-33 (~8 1/2" wide)

    Regards,
    -Tom
  21. Update: Craters and Freighters delivered them...

    Update: Craters and Freighters delivered them without a scratch!

    Everything seems to be in order except the carriage return and line feed mechanism on both of them, so that will be my next step.
  22. Replies
    24
    Views
    2,935

    Heck, even PDP-8s have been listed by scammers,...

    Heck, even PDP-8s have been listed by scammers, as seen in this thread: http://www.vcfed.org/forum/showthread.php?50234-An-Obvious-Fraud
  23. Replies
    0
    Views
    613

    WTB/WTT: DEC TU56 DECtape drive

    Hi All,

    Probably a long-shot, but I'm looking for a DECtape drive for my PDP-8/e.
    Either to buy or to trade with something. (PDP-8/11 parts, 11/34, Intel
    MDS, ASR-33, Alphastation DS10/15?)
    ...
  24. My fiancée and I are both in the hobby, so yes....

    My fiancée and I are both in the hobby, so yes. She got me some memorabilia and books from DEC and IBM, and various 90s PC games. I bought her an early PowerBook and a Toshiba T3100e, although I...
  25. Replies
    29
    Views
    2,662

    At least 10 years ago I saved several Sun Ultra...

    At least 10 years ago I saved several Sun Ultra 5s from a dumpster. I had planned to make a Beowulf cluster out of them for a school project, but after a while neither the school nor my parents would...
Results 1 to 25 of 298
Page 1 of 12 1 2 3 4