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Thread: Tektronix 4052/54 diagnostic ROM pack remade.

  1. #1

    Default Tektronix 4052/54 diagnostic ROM pack remade.

    As mentioned previously in the other 405x threads I recreated an updated version of the Tektronix diagnostic ROMPACK. PCB's are back, I populated a few, and, even better, they are functional !

    20180404_204612.jpg

    20180404_204619.jpg

    20180404205756_20180404_084934.jpg

    20180404_084244.jpg

    Still need to write documentation and design a fitting 3D package.
    I have 20 PCB's, which is probably enough for the next 25 years....

    Jos

  2. Default

    Quote Originally Posted by jdreesen View Post
    As mentioned previously in the other 405x threads I recreated an updated version of the Tektronix diagnostic ROMPACK. PCB's are back, I populated a few, and, even better, they are functional !

    20180404_204612.jpg

    20180404_204619.jpg

    20180404205756_20180404_084934.jpg

    20180404_084244.jpg

    Still need to write documentation and design a fitting 3D package.
    I have 20 PCB's, which is probably enough for the next 25 years....

    Jos
    Great news!!

    I have a 4052 and 4054 that both need repair.

    How much for a diagnostic PCB? and shipping to Texas. Would you consider selling one of your populated boards?

    Monty

  3. #3
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    Default

    Very nice! Well done!
    Torfinn

  4. Default

    Jos,

    I can try to design a case for your diagnostic PCB. Are the mounting holes in your first picture, the same spacing as a standard Tektronix ROM cartridge? 85mm x 50mm?

    Monty
    Last edited by nikola-wan; April 5th, 2018 at 05:51 PM.

  5. #5

    Default

    Hi Monty,

    Thanks for the offer, but I already finished that part of the design. Just some finetuning & documentaion required, then i will get back to you all w.r.t. to possible options & costs.


    Jos

  6. #6

    Default

    Hi Jos,

    this is indeed good news! Fantastic job! Count me in for a PCB! I finally put my 4052 together again last night, so next time something acts up, I can just plug this baby in for starters before taking everything apart again.

    --Roland
    "END OF LINE" [MCP, 1982]
    "An admin that isn't a bit hackerish is just the guy mopping up the keyboard" [Phrack V0b I3f P12]
    "Any appearance of danger is simply a device to enhance your experience" [Futureworld, 1976]

  7. #7

    Default Tek 4052/54 Diagnostic rom packs are available !

    I am ready to deliver the diagnostic rom packs : point your browser to

    ftp://ftp.dreesen.ch/TEK_DRP

    read my doku file DiagPack_Manual.pdf , decide if this is what you want, and order ( or not...)
    Also read the original TEK doku TEK4052_4054_Diagnostic_Rom_Pack.pdf in order to understand what this unit can and cannot do.

    Prices, in short : PCB only 20Euro/25 USD, finished and tested 60/75, add 20/25 for a fitting 3D printed casing.

    And do feel free to construct your own with the data from my FTP site.

    Jos

  8. Default

    Quote Originally Posted by jdreesen View Post
    I am ready to deliver the diagnostic rom packs : point your browser to

    ftp://ftp.dreesen.ch/TEK_DRP

    read my doku file DiagPack_Manual.pdf , decide if this is what you want, and order ( or not...)
    Also read the original TEK doku TEK4052_4054_Diagnostic_Rom_Pack.pdf in order to understand what this unit can and cannot do.

    Prices, in short : PCB only 20Euro/25 USD, finished and tested 60/75, add 20/25 for a fitting 3D printed casing.

    And do feel free to construct your own with the data from my FTP site.

    Jos
    Jos,

    I'm having problems downloading any of the files on your ftp site. I can list the directory but get permissions errors on file download.

    Monty

  9. Default

    Jos,

    I got the ftp site to download by using an Internet Download Manager.

    I would like to purchase one tested PCB. I'll print my own case - thanks for the STL files!

    I'm in the US - how do I send my payment?

    Thanks a lot!

    Monty

    PS - in debugging my 4052 I've found a couple of power supply problems like yours and replaced the -20V op-amp and ordered a replacement Bridge Rectifier.
    My 5V supply was working, I could type PRINT "ctrlG" and get a beep from the speaker. My screen wasn't working - a dim glow that didn't fill the screen, and when I pressed PAGE, it showed a sharper 'weird' shaped and then back to the dim glow. I figure this was due to the bad -20V.

  10. Default

    Jos,

    If you haven't seen it - the latest Tektronix 4051 emulator program from Dave and Jon is really working quite well:
    http://www.vcfed.org/forum/showthrea...489#post498489

    It is a web-browser based emulator - I run it on my PC with Chrome browser.

    We are now looking for 4051 programs to add to the Programs folder - or even create a separate Github repository for 4051/4052/4054 tapes.

    Monty

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