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Type: Posts; User: MikeS

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  1. Replies
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    182

    Thanks; makes sense, maybe due to advances in...

    Thanks; makes sense, maybe due to advances in metallurgy and engineering and widespread use in the CNC industry.
  2. Replies
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    I've always wondered: why do Teletypes and...

    I've always wondered: why do Teletypes and similar machines require oiled tapes while most computers used plain tape?
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    1,477

    You say that removing the A5-9 jumper gave a...

    You say that removing the A5-9 jumper gave a signal on A5-8 but when I asked whether removing it made any difference you said "I did not see any difference yet when i cut that jumper."

    So, does...
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    97

    If it's the only drive, after the twist on a...

    If it's the only drive, after the twist on a twisted cable, DS1, terminator in; hopefully the other jumpers are correct as is.
  5. Replies
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    Sorry, in all this I missed that you'd removed...

    Sorry, in all this I missed that you'd removed and replaced the A5-9 jumper; is there a difference with it grounded or not? I think it should probably be disconnected.

    Re the CG ROM: I was...
  6. Replies
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    ... and make sure you have a good ground. I'd...

    ... and make sure you have a good ground.

    I'd pull that jumper a5-9 to ground; looks like it should be high to load the RAM.

    Also it looks like some corrosion around there; wouldn't hurt to...
  7. Hi, I remembered this post of yours from last...

    Hi,

    I remembered this post of yours from last fall; I have an MTU board and a disk of stuff for it but unfortunately it was really inconvenient at the time to look for the disk.

    However, as I...
  8. Not very difficult; just watch for the tiny...

    Not very difficult; just watch for the tiny spring that closes the shutter.

    But why aren't you normally using the backup disks instead of the originals?
  9. Replies
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    Well, it'll certainly be a challenge that could...

    Well, it'll certainly be a challenge that could keep you (and some of us) busy troubleshooting for a while ;-)

    I'd probably start by carefully documenting all the modifications to try to figure...
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    On a single-sided drive? Remarkable!

    On a single-sided drive? Remarkable!
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    669

    IIRC the interfaces I worked with and still have...

    IIRC the interfaces I worked with and still have a few of were for the Praxis35 and a 101?
  12. Thread: L40SX Batteries

    by MikeS
    Replies
    19
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    1,056

    Good point; 1 5/8 x 1 1/8 x 1/2

    Good point; 1 5/8 x 1 1/8 x 1/2
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    227

    Where in Ontario? It's a big place, y'know...

    Where in Ontario? It's a big place, y'know...
  14. Thread: L40SX Batteries

    by MikeS
    Replies
    19
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    1,056

    Looks like a cordless phone battery; I use 'em in...

    Looks like a cordless phone battery; I use 'em in most of my systems:
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    301

    - I believe the battery cover has been printed -...

    - I believe the battery cover has been printed
    - The AC adapter is 6V DC but with a negative center pin.
    - Cleaning battery terminals depends on battery type; try vinegar with a toothbrush, else...
  16. You're right of course, it had a 68000 and was...

    You're right of course, it had a 68000 and was probably a NEC after all. Should have looked more closely but that ROM board looked very similar.
  17. Thread: KIM-1 interest?

    by MikeS
    Replies
    16
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    973

    Good advice! Also, some papers are better than...

    Good advice! Also, some papers are better than others.

    The same mechanism was used in some calculators but they're even harder to find these days.
  18. Thread: KIM-1 interest?

    by MikeS
    Replies
    16
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    973

    If it's worn down I don't think there's much you...

    If it's worn down I don't think there's much you can do other than replace it; last I checked there were some available but not cheap.

    Turning up the voltage a bit might help; on the other hand it...
  19. It was just a wild guess; I scrapped a printer...

    It was just a wild guess; I scrapped a printer years ago (Xerox IIRC, could have been NEC) with a similar size board and a daughterboard with 8 or 10 EPROMs containing the Postscript interpreter.
  20. Thread: KIM-1 interest?

    by MikeS
    Replies
    16
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    973

    A lot more than AIM65 enthusiasts :( ; I've got...

    A lot more than AIM65 enthusiasts :( ; I've got several of those, as well as Oscar's Nano-Kim.

    Looking forward to seeing those programs!
  21. Possibly a printer; those ROMs might be...

    Possibly a printer; those ROMs might be Postscript.
  22. Replies
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    Yeah, very confusing and a real PITA when looking...

    Yeah, very confusing and a real PITA when looking for info. Why on earth did Toshiba reuse model numbers; I think there are also two different versions of the T200.

    A shame about the display in...
  23. Thread: 8050

    by MikeS
    Replies
    48
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    4,280

    Thanks!

    Thanks!
  24. They don't look like anything on my Thinkpads;...

    They don't look like anything on my Thinkpads; maybe from a desktop?
  25. Thread: 8050

    by MikeS
    Replies
    48
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    4,280

    Any pics of the Mega with your board mounted?

    Any pics of the Mega with your board mounted?
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