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Type: Posts; User: MrArgent

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    Ah, darn. As an aside, the Byte Magazine writeup...

    Ah, darn. As an aside, the Byte Magazine writeup on the APC alludes to NEC having ported PTOS BASIC to the APC under CP/M-86 (well, more adapted - PTOS was the APC's native OS in it's original...
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    NEC APC: In Search of Software

    So, I've got a NEC APC but not a whole lot to really show off what it can do - it seems like one of the bigger user groups, Nexworld, maintained a freeware library. I've had a hard time finding high...
  3. Nah, just a regular off-the-shelf 3.5" 720k...

    Nah, just a regular off-the-shelf 3.5" 720k drive. The KayPLUS ROM and accompanying CP/M distribution implement a fair degree of support for them, surprisingly. I was assuming they'd just be treated...
  4. I've managed to bungle together some good media....

    I've managed to bungle together some good media. If anyone's able to do things through the normal pipeline I'd still appreciate it, though! Likewise, if anyone has geometry on the MICROCode disk...
  5. KayPLUS Kaypro 2X: Boot disk image needed

    So, I'm trying to fit my Kaypro 2x with a 3.5" drive as B: to circumvent the fact that I can't get the stock DSDD drive talking. Only thing is, it seems the KayPLUS configuration utility that I need...
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    Oops. That's a mixup on my part, then! I was...

    Oops. That's a mixup on my part, then! I was under the assumption that ECC involved parity in some capacity.
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    My SGI o2 seems robust, and the parity...

    My SGI o2 seems robust, and the parity functionality even makes a fine "canary in the coal mine" for the RAM contact issues the system's incredibly prone to.

    https://i.imgur.com/zPMI1p8.jpg
  8. I've been trying to just make double density...

    I've been trying to just make double density images from TRStools but they don't really seem to write properly...at least, not following conversion through DSK2IMD on the Portable's end.
  9. I've been using my Compaq Portable I (a 8088...

    I've been using my Compaq Portable I (a 8088 machine) since I don't have anything capable of running Windows post-3.0 with a regular DSDD floppy drive. We're going to need a pure DOS pipeline,...
  10. Writing software diskettes from DOS-based PCs (or KERMIT?)

    So, question now that i'm wrapping things up on the Model 4 repair work (those PSU soldering joints are a bear!) -- Is there a good way to convert existing disk images to double density so that they...
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    The III (nearly pristine and mostly restored...

    The III (nearly pristine and mostly restored though i've had some sudden issues with disk boot and some keys are bogus - but not beyond Deoxit being seemingly enough to save) set me back $100, the 4...
  12. Got the issue with drives seemingly not...

    Got the issue with drives seemingly not communicating with anything sorted out - the power connector came disconnected when I pulled the ribbon cable somehow. No fooling... We're back at disks boot...
  13. Yup. The length of the stock cable doesn't really...

    Yup. The length of the stock cable doesn't really allow for reversal.

    http://www.thesvd.com/Images/internal-big.gif

    Also, that's indeed what happens - but the read/write LED also gets held on....
  14. Nah, I kept the door open and've been careful...

    Nah, I kept the door open and've been careful with my reimaging and use of write protect tabs. As far as progress goes, the plot has unfortunately thickened. I pulled the ribbon cable to see if a...
  15. Yeah, having brushed up on ArtifactElectronics'...

    Yeah, having brushed up on ArtifactElectronics' work on the III (where he mentioned not to do this) I figured this wasn't something i should be doing any more than I absolutely have to. It also looks...
  16. Worth a try! I just realized that I do get...

    Worth a try! I just realized that I do get "DISKETTE?" if I leave a disk in the drive at power-on, too.

    I was trying to do some basic, PRINT MEM-tier diagnostic work in BASIC, but with four keys...
  17. TRS-80 III: Screen never comes on when attempting to boot diskette?

    So, the III I took home. I've been trying to boot LDOS and TRS-DOS 1.3 diskettes that boot fine on my Model 4, but...well, I can't tell if they're actually booting or not because it turns out the...
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    Yeah, I gave those a one-over in my mission to...

    Yeah, I gave those a one-over in my mission to get J3 to stay put. Couple of pins had the ring o' death forming, but luckily that one held up better. I need to get a better soldering station lol
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    Got 'em down! just took a couple of tries and a...

    Got 'em down! just took a couple of tries and a lot of solder. Machine's basically operational, though as of yet I can't format a clean disk on :0 or :1 (Sectors 36, 37, 38, and 39 get marked bad)...
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    WTB: Sun 8-pin mouse

    Took home some Sun iron at VCF Midwest, forgot to take home a compatible mouse/kb. I've got the keyboard squared away, but anyone got a mouse they can spare?
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    TRS-80 III and 4 part interchangability?

    So, I've got an ailing TRS-80 Model 4 I'm troubleshooting and a TRS-80 Model III in more certain shape. Could I swap the PSU and floppy drives from the III into the 4 for testing purposes?

    Also,...
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    Joining my collection after a very productive VCF...

    Joining my collection after a very productive VCF Midwest are a TRS-80 3 and 4! The 3's in need of some attention with regards to the graphite contacts (nearly the entire ZXCVBNM row is intermittent...
  23. Kaypro 2X: Replacing keyboard RJ11 recepticle?

    So, I bagged a Kaypro 2X at VCF Midwest. It's in working shape, but the keyboard receptacle seems to have given up on life on the way home. Broke into multiple pieces, so we're past the point where...
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    Kermit recursion?

    So, I'm trying to back up the data off a 486 I was given by an old pastor with KERMIT 3.16, but the /recursive switch didn't actually get the entire contents of the C: drive (or, in fact, any...
  25. Unfortunately, it wasn't the MC14023. The plot's...

    Unfortunately, it wasn't the MC14023. The plot's also thickened. (Oh, I hate it when it does that.)

    When I swapped the two drives' controller boards after realizing the 14023 swap didn't fix the...
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