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Thread: external floppy drive compatibility: IBM 4869 and sysgen bridge-file

  1. #1

    Default external floppy drive compatibility: IBM 4869 and sysgen bridge-file

    Are these compatible? They both seem to have 37 pin connections. My 5170 came with the sysgen card in it, but it seems to be easier to find the IBM drives with the cable. Most of the bridge file drives that come up on on ebay don't have a cable. Or is it same to assume these cables are just straight through for the sysgen?

  2. #2
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    I've got the Sysgen Omnibridge (which I assume you're talking about) as well as a carton of two of the 4869s. The pinout is similar, but not exactly identical (I made a blog post some years back on how to fix this). Just be sure to disable any power feed from the Sysgen to the 4869, which has its own PSU.

  3. #3
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    If I remember correctly, Chuck's blog post on this was in two parts, and one part is no longer on vcfed and the other is missing all pictures. I was able to find references to Chuck's original blog postings through http://archive.org/, complete with pictures. Those two original blog URLs were: http://www.vintage-computer.com/vcfo...rk-with-a-5150 and http://www.vintage-computer.com/vcfo...ppy-box-Part-2

  4. #4
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    Sorry, but I don't keep my old blog postings--I trust the maintainers of the web site to do that.

  5. #5
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    The archive.org copies are complete and include all of Chuck's very helpful text and pictures.

  6. #6

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    Thanks everyone!

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