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  • Duodisk card

    From KP@21:1/5 to All on Wed Oct 19 07:23:05 2022
    Does the Duodisk use a special card? Is it compatible with any other 5.25" floppy controller card?

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  • From waynejstewart@gmail.com@21:1/5 to All on Wed Oct 19 08:28:42 2022
    The DuoDisk uses a card that looks pretty much the same as the Disk II card with the exception of sporting a db19 connector. It’s the same card that’s used with the daisy-chained 5.25” drives. My earlier production one is labeled I/O Controller
    while my later one is labeled 5.25 drive controller. Both have the part number 655-0101

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  • From KP@21:1/5 to waynej...@gmail.com on Wed Oct 19 23:47:41 2022
    Thank you very much; greatly appreciated.

    On Wednesday, October 19, 2022 at 11:28:43 AM UTC-4, waynej...@gmail.com wrote:
    The DuoDisk uses a card that looks pretty much the same as the Disk II card with the exception of sporting a db19 connector. It’s the same card that’s used with the daisy-chained 5.25” drives. My earlier production one is labeled I/O Controller
    while my later one is labeled 5.25 drive controller. Both have the part number 655-0101

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    * Origin: fsxNet Usenet Gateway (21:1/5)
  • From KP@21:1/5 to All on Wed Oct 19 23:51:33 2022
    By the way, does the DuoDisk work with the IIgs smartport?


    On Thursday, October 20, 2022 at 2:47:43 AM UTC-4, KP wrote:
    Thank you very much; greatly appreciated.
    On Wednesday, October 19, 2022 at 11:28:43 AM UTC-4, waynej...@gmail.com wrote:
    The DuoDisk uses a card that looks pretty much the same as the Disk II card with the exception of sporting a db19 connector. It’s the same card that’s used with the daisy-chained 5.25” drives. My earlier production one is labeled I/O Controller
    while my later one is labeled 5.25 drive controller. Both have the part number 655-0101

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  • From scott@alfter.diespammersdie.us@21:1/5 to kjpmail@gmail.com on Thu Oct 20 16:52:21 2022
    KP <kjpmail@gmail.com> wrote:
    By the way, does the DuoDisk work with the IIgs smartport?

    Yes, with some caveats. Mine does, but if I remember right, there were some things I had to check first to make sure there would be no magic smoke
    released on power-up.

    This note suggests that the DuoDisk doesn't play well with ROM 3 IIGSes:

    https://archive.org/details/IIgs-No_DuoDisk_on_SmartPort/

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  • From waynejstewart@gmail.com@21:1/5 to All on Thu Oct 20 12:23:49 2022
    The Duodisk can be used on the IIgs but can cause problems with other daisy-chained drives. Apple recommended a resistor be removed from the DuoDisk before using it on the IIgs

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  • From Antony Mauget@21:1/5 to All on Sun Oct 23 08:17:26 2022
    This article http://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Peripherals/Disk%20Drives/Apple%20DuoDisk%205.25/Documentation/Apple%20DuoDisk%20-%20IIGS%20Compatibility.pdf
    contains a link to the Apple KB for the Duodisk mod.

    --
    ________________
    Antony
    Apple II forever

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