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  • Restoring PDP-11/34A - Part 1

    From goto_KCM@21:1/218 to All on Wednesday, March 19, 2025 08:21:59
    Hey there.

    So, fist steps are done to bring my PDP-11/34A back to life.
    The PSUs had to be redone and slowly awaken from their sleep.
    After that, which takes about a week, done by my friend Gnther Honisch, i put back those parts together and first time after about 30 years the PSUs got powered on again.

    No magic smoke escaped and after checking the voltages +5V, -15V and +15V where OK on the UNIBUS. So first step ok.

    After this step i put in the Terminator Card M9302, some NPG Cards and the KY11-LB Console Card. First it worked fine, the Console was online i cold type in some numbers. But after a few minutes the Console got stuck and no longer showed anything. :-(

    So, next step, get the console working again.
    Stay tuned!

    Regards
    Andreas

    ... Kautzner Computer Museum - https://kcm.or.at

    --- Mystic BBS v1.12 A49 2024/05/29 (Raspberry Pi/32)
    * Origin: KCM BBS (21:1/218)
  • From beardy@21:3/158 to goto_KCM on Thursday, March 20, 2025 01:16:07

    On 2025-03-19 08:21 goto_KCM said...
    So, next step, get the console working again. Stay tuned!

    I hope it goes well.
    Really nice to see old machines kept alive, or brought back to life.
    The closest I've been to the real PDP-11 hardware was an account I had on a machine that was running in Norway.
    That guy also had a Norsk Data (ND) running at the time that I also had an account on to play around with.

    Other than that I like to play around with PDP-stuff using SIMH.

    I was going to ask if there's any pictures of your machine and your project, I think I can answer myself and others interested, that I think pictures are here:
    https://kautzner-computer-museum.at/pdp-1134a_restore_1/

    Looking forward to hear more about your progress.

    --
    Best regards
    //beardy
    [IRC] beardy [WEB] beardy.se [GPH] gopher://bbs.beardy.se:8070/1
    [FSX] 21:3/158 [TQW] 1337:1/115
    [BBS] bbs.beardy.se (ssh/wss/telnet) https://beardy.se/bodax-bbs
    --- ENiGMA 1/2 v0.0.14-beta (linux; x64; 21.6.1)
    * Origin: BodaX BBS ~ bbs.beardy.se:23 / SSH port 22 (21:3/158)
  • From Malvinas@21:4/167 to goto_KCM on Wednesday, March 19, 2025 21:20:21
    So, next step, get the console working again.
    Stay tuned!


    This is wonderful!! Keep these posts coming, please

    Malvinas.

    Pol Malvinas.

    Islas Malvinas, siempre Argentinas!

    ... Islas Malvinas, siempre Argentinas.

    --- Mystic BBS v1.12 A47 2021/12/25 (Windows/64)
    * Origin: The Vault BBS (21:4/167)
  • From goto_KCM@21:1/218 to beardy on Thursday, March 20, 2025 10:41:17
    I was going to ask if there's any pictures of your machine and your project, I think I can answer myself and others interested, that I think pictures are here: https://kautzner-computer-museum.at/pdp-1134a_restore_1/

    Hey, yes that is my Museums Blog where i also post pictures :-),

    ... Kautzner Computer Museum - https://kcm.or.at

    --- Mystic BBS v1.12 A49 2024/05/29 (Raspberry Pi/32)
    * Origin: KCM BBS (21:1/218)