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Type: Posts; User: 1944GPW

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  1. Interesting, as that's not the only time a PDP-8...

    Interesting, as that's not the only time a PDP-8 ("straight eight") has graced the cover of Electronics Australia.
    This cover from December 1974 shows Jim Rowe demonstrating the EDUC-8 with a PDP-8...
  2. IBM 2741 I/O Selectric terminal platen knob on eBay

    Not mine.
    https://www.ebay.com.au/itm/164216408001
    As far as I know, this style of knob was only ever fitted to the 2741 terminal, MT/ST and blue ones for the 1052 printer-keyboard and 1053...
  3. Most of the Diablo's in that lot are fitted with...

    Most of the Diablo's in that lot are fitted with the flush-mount front fascia panels, as mine are. Two appear to be the Alto style with the side panels that made the drive project out the front of...
  4. Wow... nice lot. It cost me a fortune to ship my...

    Wow... nice lot. It cost me a fortune to ship my Diablo's from the northern hemisphere some years ago, after which I was even contacted by the seller asking if they could buy them back for a...
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    Here are the 5V and 12V PDP-11 dummy loads I...

    Here are the 5V and 12V PDP-11 dummy loads I built, I just copied Malcolm Macleod's ones he made for loading his 11/23 from his very useful website (original page, can't find the latest link to it): ...
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    Wayback Machine... ...

    Wayback Machine... https://web.archive.org/web/*/http://www.psych.usyd.edu.au/pdp-11/hints.html
  7. Wow, a huge thanks for doing those! I've only...

    Wow, a huge thanks for doing those!
    I've only been looking through only 3 of them so far, and they are filled with all sorts of curious and interesting articles and ads, and component packaging...
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    I fear you may be looking for some time to come...

    I fear you may be looking for some time to come if you want the real deal. That said, I have seen the odd Hawley mouse come up on eBay from time to time.
    If you are happy with a workalike replica...
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    You could nitpick this, as some might like to. ...

    You could nitpick this, as some might like to.

    Let's look on eBay.com:

    DE-9 (plug,socket,connector)
    64 results for DE-9 (plug,socket,connector)

    DB-9 (plug,socket,connector)
    2,956 results...
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    There was also the Xerox Dorado ...

    There was also the Xerox Dorado https://bushytree.fandom.com/wiki/Xerox_Dorado
  11. Hey, thanks for that! I had completely forgotten...

    Hey, thanks for that! I had completely forgotten about the ContrAlto project. I had read somewhere(?) that the keyset could actually be used for typing rather than just function keys(?), which was my...
  12. Thread: Ibm 5100

    by 1944GPW
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    259

    Now if only it had been in the back of your...

    Now if only it had been in the back of your truck, that tree would have bounced right off of it ;)
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    Board member kgober's FSX project understands...

    Board member kgober's FSX project understands RT-11 and Files-11, it is in C# and builds on VS Community Edition without any problems. Source is at https://github.com/kgober/FSX
  14. Thought I would do a bit more work on it. The...

    Thought I would do a bit more work on it. The overall outside measurements are combined from Marc's and Al's photos, and all inside details are from Al's photos. Which are good enough for a lookalike...
  15. I am working on it, round-robin with other...

    I am working on it, round-robin with other models.
    In case anyone's interested this is how I go about turning photos of things into CAD and 3D models.
    First is to level out the edges by rotating...
  16. Just to clarify, both Al and Marc had photos of...

    Just to clarify, both Al and Marc had photos of the keyset, same model. I'm primarily using Marc's photos.
  17. Yes, I am. It's one of my 3D model projects, I...

    Yes, I am. It's one of my 3D model projects, I started a notepad file of them when I got my 3D printer a few years ago. Whenever I think of something to model I jot it down on the list before I...
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    Wow, my Digitronics has exactly the same problem...

    Wow, my Digitronics has exactly the same problem as can be seen here, and not nearly as clean as yours is! The capstan cylinder (not the rubber) is 13.91mm dia and 43.3mm long. The rubber looks to be...
  19. Those fins look like they could be removed by...

    Those fins look like they could be removed by scoring at the base with a hobby knife (an Exacto #11 blade, the best hobby knife blade in the world) and then snapping off. with pliers. Use a dab of...
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    Chuck, I'm curious as to what your BASIC was...

    Chuck, I'm curious as to what your BASIC was marketed as, what was its name and any ads for it in trade magazines we can gawp at? I remember being really chuffed seeing our ad appear in Dr Dobbs...
  21. If the fins are internal structures that impinge...

    If the fins are internal structures that impinge on the larger tube, and the tube will make the machine operable again, I'd say it's absolutely fine and worth doing.
    After all, Marc, Mike, Ken and...
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    Here's what I would do. Don't stencil any labels...

    Here's what I would do. Don't stencil any labels on the PCB around the LEDs. Allow space along the sides/ends of the LEDs for threaded standoffs. Make the top of the standoffs level with the top face...
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    Here in Oz there was an S-100 machine kitted by...

    Here in Oz there was an S-100 machine kitted by Applied Technology who went on to produce the Microbee, arguably Australia's most famous/popular microcomputer. They did not want to spend the massive...
  24. That's not quite the full story and as that could...

    That's not quite the full story and as that could be interpreted as a 'took the chaff and left the wheat' statement, I will elaborate on what happened.

    In February/March 2016 there was a posting...
  25. As others have already said, this is a generic...

    As others have already said, this is a generic Apple ][ joystick. I had an identical one with my taiwanese 'Formosa' ][ clone back in the early 80s.
    You don't get to realise just how bad the cheap...
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