1. Forum
  2. fsxNet
  3. FSX RETRO

  • Restoring PDP-11/34A - Part 1

    From goto_KCM@21:1/218 to All on Wed Mar 19 08:21:59 2025
    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 Günther 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 Thu Mar 20 01:16:07 2025

    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 Wed Mar 19 21:20:21 2025
    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 Thu Mar 20 10:41:17 2025
    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)