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  • glitch's Avatar
    Today, 10:23 AM
    These are awesome little unmanaged switches to have around, I keep several, one in the travel toolkit for all those times you need a...
    6 replies | 81 view(s)
  • glitch's Avatar
    Today, 10:20 AM
    Awesome, thanks for posting the conclusion -- mixups do happen, I've had three XT-IDE orders get lost in the mail (all three international), and of...
    10 replies | 382 view(s)
  • glitch's Avatar
    Today, 05:36 AM
    This was essentially a junk bin build -- I found an 8085 on an old AT&T telco board I was given during middle school, and by college I actually had...
    9 replies | 1343 view(s)
  • glitch's Avatar
    Today, 05:35 AM
    Yes, they all have the same pinout, but they also can have different properties -- speed (as you said, same or faster), and current consumption (I...
    4 replies | 87 view(s)
  • glitch's Avatar
    Yesterday, 04:30 PM
    This is the price I'd expect to pay for floppy cables. The last few legacy motherboards I've bought for day-job stuff came with them, free. I don't...
    8 replies | 149 view(s)
  • glitch's Avatar
    Yesterday, 06:15 AM
    Thanks! I need to revisit this project, I have ideas for expansion and improvement that I think other people would be interested in building!
    9 replies | 1343 view(s)
  • glitch's Avatar
    June 20th, 2017, 11:08 AM
    glitch replied to a thread New RL02 owner in DEC
    He's around now and then, he is Sark in IRC. Far more active on IRC.
    8 replies | 210 view(s)
  • glitch's Avatar
    June 20th, 2017, 07:37 AM
    glitch replied to a thread Replica boards in S-100
    Nice! I figured they'd have to mill off the layers to get at the inner copper. Good to know what to expect if/when the time comes for a multilayer...
    14 replies | 411 view(s)
  • glitch's Avatar
    June 20th, 2017, 07:00 AM
    Just received another batch of these, so they're available again! Henry Courbis will be selling them at K-FEST. You can PM me about buying them,...
    12 replies | 1560 view(s)
  • glitch's Avatar
    June 20th, 2017, 06:40 AM
    glitch replied to a thread Replica boards in S-100
    Yep, Mile High Test, now part of Gardien! A two-layer S-100 sized board costs around $250 to scan. I haven't used their multilayer service but I knew...
    14 replies | 411 view(s)
  • glitch's Avatar
    June 20th, 2017, 06:33 AM
    Indeed, that's me :) Yep, that's what I've got, per the thread title. AFAIK all of them are complete, so I don't know that I'll have a...
    6 replies | 603 view(s)
  • glitch's Avatar
    June 20th, 2017, 06:31 AM
    Yes, it comes with ImageDisk. I use an Adaptec AHA-1522/1542 controller in my utility PC, someone else already mentioned it. Make sure you get one...
    7 replies | 157 view(s)
  • glitch's Avatar
    June 20th, 2017, 06:29 AM
    glitch replied to a thread New RL02 owner in DEC
    I believe RetroHacker_ has a boatload of rails.
    8 replies | 210 view(s)
  • glitch's Avatar
    June 19th, 2017, 07:39 PM
    glitch replied to a thread Replica boards in S-100
    Maybe you/we/someone ought to get a GitHub repo set up for them, as we did with the OSI boards. That should help ensure their continued availability.
    14 replies | 411 view(s)
  • glitch's Avatar
    June 19th, 2017, 07:33 PM
    glitch replied to a thread New RL02 owner in DEC
    *ALWAYS* open packs and inspect before mounting. A bad pack will ruin a good drive, and the only way to be certain the pack isn't already crashed is...
    8 replies | 210 view(s)
  • glitch's Avatar
    June 19th, 2017, 05:26 PM
    Bizarre! Definitely the corona discharge that's your issue. I've seen other CRTs with no anode cap, but they're usually much lower anode voltage...
    15 replies | 352 view(s)
  • glitch's Avatar
    June 19th, 2017, 04:31 PM
    As with the DG cassettes, I'd record them to the computer before you do much with them -- who knows which read will be the last read!
    7 replies | 144 view(s)
  • glitch's Avatar
    June 19th, 2017, 04:21 PM
    glitch replied to a thread Replica boards in S-100
    The process I use for reproduction is the same as Grant's -- he actually directed me to the company that does it. They do scans at 4000 DPI directly...
    14 replies | 411 view(s)
  • glitch's Avatar
    June 19th, 2017, 04:19 PM
    I had a 3B1 that had come from a local bank a while ago...dead hard disk, but it booted from floppies and passed all other diagnostics. It had the...
    6 replies | 603 view(s)
  • glitch's Avatar
    June 19th, 2017, 01:19 PM
    glitch replied to a thread Televideo 910+ in Other
    Nice work! It may have worked at some point in its life -- I've had a few boards that came to me non-working and turned out to have a few pads that...
    3 replies | 115 view(s)
  • glitch's Avatar
    June 19th, 2017, 01:16 PM
    glitch replied to a thread Replica boards in S-100
    Grant is the only one with the design files, as far as I know. It would seem a shame to duplicate his work, especially since it seems many people are...
    14 replies | 411 view(s)
  • glitch's Avatar
    June 19th, 2017, 11:44 AM
    You don't have to worry much about speed with wire wrap on the S-100 bus -- properly done, it's usable to 20 MHz. As long as the board design is sane...
    7 replies | 144 view(s)
  • glitch's Avatar
    June 19th, 2017, 10:16 AM
    Good stuff, but I don't see why there would be doubt about it being possible -- there are non-Altair CPU boards that work with the Altair front...
    7 replies | 144 view(s)
  • glitch's Avatar
    June 19th, 2017, 07:05 AM
    Ah, I'd sort of forgotten about those! Hacking them was a big thing for a while, I believe there were several base boards made that added SPI RAM and...
    18 replies | 493 view(s)
  • glitch's Avatar
    June 18th, 2017, 06:08 AM
    glitch replied to a thread Tei computer in S-100
    Yes, that's an IMSAI-style front panel connector in the top right corner. You can get CP/M for the North Star controller without Z80 code as...
    12 replies | 609 view(s)
  • glitch's Avatar
    June 18th, 2017, 05:55 AM
    The ADP50 was an 8-bit ISA card to talk to 16-bit IDE drives, that's the only vintage board I've personally seen. Of course, the XT-IDE does exactly...
    27 replies | 698 view(s)
  • glitch's Avatar
    June 17th, 2017, 03:04 PM
    glitch replied to a thread Tei computer in S-100
    CP/M will run on an 8085, but if you have a version that does use Z80 opcodes, yes, it will crash! North Star DOS will also work with an 8080/8085...
    12 replies | 609 view(s)
  • glitch's Avatar
    June 16th, 2017, 06:34 PM
    I've ran a couple of the 2.x releases on my rev 3 boards, for "Chuck Mod" mode support. The translation is different between them, so of course my...
    346 replies | 30324 view(s)
  • glitch's Avatar
    June 16th, 2017, 06:25 AM
    v1.1.5 is available on the filedump: ftp://filedump.glitchwrks.com/xt_ide/bios/ 2.x beta stuff is available somewhere on the official site: ...
    346 replies | 30324 view(s)
  • glitch's Avatar
    June 15th, 2017, 10:37 AM
    glitch replied to a thread Altair buss expansion boards in S-100
    I use a small arbor press as well, but I don't have the right die, so for e.g. ribbon cable to DIP crimps I use a stack of perfboard :p
    32 replies | 829 view(s)
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    Those guys were NOT pushed very heavily on the west coast--My '76-'77 stint @ BYTE of Lawndale was before they even came out---Then I worked with Byte/Bellevue WA and they heavily pushed Northstar, and Altos...

    I am sorry I can't help much!
    GWK
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    hi.............
  3. View Conversation
    Hi,

    please reply ...................
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About glitch
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Vintage computers, new computers, electronics, tube audio
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Analog Electronics Engineer/Assembler

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