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Type: Posts; User: Chuck(G)

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  1. Replies
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    I used a NEC LCD2010 for years and only recently...

    I used a NEC LCD2010 for years and only recently sent it to the recycler after the panel began having problems Nice monitor; expensive as heck.
    ...
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    I'm running a 3c509B on one of my XT clones, but...

    I'm running a 3c509B on one of my XT clones, but the CPU is a V20, so more along the 186/286 line, supporting additional instructions. Could that be your problem?
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    Is this the primary one?

    Is this the primary one?
  4. I've had some success in using the 6 inch bands...

    I've had some success in using the 6 inch bands on the DC300 sized carts. But I understand that they're hard to find.
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    It might be that the whole thing was...

    It might be that the whole thing was auto-translated, then hand-tweaked to make it fit in a limited space.

    Just guessing here...
  6. There are two major problems with Plastibands....

    There are two major problems with Plastibands. The first is that they age badly. Don't lay in a stock and expect to use them 5 years from now--they do lose their "stretch" with time. The second...
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    Don't know what happened to my original comment,...

    Don't know what happened to my original comment, but this must be a very early 8086 version of GWBASIC. The code is auto-translated from 8080, with an enormous amount of excess baggage. It looks...
  8. If you're not trying to be retro- period-correct,...

    If you're not trying to be retro- period-correct, I'm wondering why you're using an old chip like the 181. Care to elaborate?
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    It's an automated translation (CONV86?) from 8080...

    It's an automated translation (CONV86?) from 8080 source, so there's a considerable amount of bloat in the code. (See an earlier post of mine about yours truly and the Intel translator). The code ...
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    What, no "Hello KItty" stickers? :)

    What, no "Hello KItty" stickers? :)
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    It's not the last Tandy 200 on earth, so...

    It's not the last Tandy 200 on earth, so preservation is less important. What you describe is minor.
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    Alternatively, there is a DOS API to set the file...

    Alternatively, there is a DOS API to set the file date, as well as a Powershell command "SetItemProperty" for Windows (if you're Microsoft-impaired). Linux of course, has "touch", where the -t (or...
  13. By the mid-70s, LSTTL was a reality and ...

    By the mid-70s, LSTTL was a reality and high-level integratio like the 2901 n became possible. The 74181/9341 dates from, what 1970? I recall the excitement of "a whole ALU on a chip" being...
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    I picked up CD-RWs very early in the game. I...

    I picked up CD-RWs very early in the game. I don't think a single disc survived. They are definitely not for long-term storage.
  15. My recollection is that for the 74xxx systems, it...

    My recollection is that for the 74xxx systems, it was not uncommon to see a 74199 or 198 used as an ALU register. You get shifting capabilities out of it as well, which can be handy in an ALU. These...
  16. Memory parity/nothing/ECC was hit-or-miss on...

    Memory parity/nothing/ECC was hit-or-miss on vintage mainframes. I remember reading pages and pages of bit errors that a given SECDED/Fire Code would correct, versus those that would be detected,...
  17. Well, the huger the tube, the faster the raster?...

    Well, the huger the tube, the faster the raster? :)
  18. Even today, I can tell without looking that the...

    Even today, I can tell without looking that the 923 was a J-K flip flop (probably Fairchild Micrologic). TO-99. Some things you never forget--they were among the first ICs I ever used. Expensive,...
  19. You'll go nuts trying to make sense of CDC...

    You'll go nuts trying to make sense of CDC internal numbers and MPI model numbers/OEM numbers. All seemed to propagate like cockroaches.

    Best bet is to match up what you have with documentation....
  20. Huh? :huh: Someone want to 'splain that one...

    Huh? :huh:

    Someone want to 'splain that one to me?
  21. If full-height, it could also be similar to the...

    If full-height, it could also be similar to the MPI 52.
  22. Have you checked here...

    Have you checked here.

    CDC/MPI drive models can be confusing (and misleading); if it's a full-height drive, it's likely very simlar to the 9409; if half-height, the 9428.
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    Even non-trash CDs, sometimes. I had a drive...

    Even non-trash CDs, sometimes. I had a drive that would reject Mitsui Gold CD-Rs. Try a different brand.
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    ...and I only had to wait 8 years for the report!...

    ...and I only had to wait 8 years for the report! :)
  25. Try isolating the PSU pin for a test. If power...

    Try isolating the PSU pin for a test. If power is applied and the system stays off, at least you know to look at the motherboard.

    With the PSU disconnected, what resistance reading to get...
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