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Type: Posts; User: CuriousMarc

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  1. The Magnetic Peripherals BR8A8B appears to be the...

    The Magnetic Peripherals BR8A8B appears to be the drives used inside the HP 9895 I have. Thanks very much for the manual CDC manual references, it's a close match! It should enable me to repair the...
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    I use my IBM Selectric II typewriter...

    I use my IBM Selectric II typewriter...
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    I do need some. Can you message me? And I have...

    I do need some. Can you message me?
    And I have the non-stick label problem too, but I have the 3M77 contact glue too! That will stick anything to anything.

    Marc
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    Don't know. Very active on classiccmp.org. Very...

    Don't know. Very active on classiccmp.org. Very knowledgeable about these systems. Just met him at VCF MidWest last week-end.

    I just uploaded a video of my system as it arrived.
    ...
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    I do have a 21MX (a 2112 to be exact) and a 7900...

    I do have a 21MX (a 2112 to be exact) and a 7900 drive (with cables!), but I am still missing the disk interface card. And a tape reader and two tape punches and a 7970 mag tape and an ASR 33 TTY...
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    Morality: don't trust bits coming off old...

    Morality: don't trust bits coming off old hardware... ;)
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    Epilogue 2: Just picked up the exact same 5.25"...

    Epilogue 2: Just picked up the exact same 5.25" Chinon FR-506 drive at VCF MidWest this week-end, and this unit works perfectly.

    The proper jumper config for this Chinon FR-506 drive on a PC is:...
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    Epilogue 1: the drive was faulty, details of the...

    Epilogue 1: the drive was faulty, details of the fault below.

    I monitored the pin 2 status (density change), and the disk responds abnormally to it.

    When jumper MS1 is on (which I think is...
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    The plot thickens. I was curious to see if there...

    The plot thickens. I was curious to see if there was some signal at the drive heads, so I partially opened the drive until I could access the head connectors. I eventually found which pin was write...
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    And very annoyingly, signals look good when...

    And very annoyingly, signals look good when probing right at the floppy connector. Bottom green is the gate write signal, top yellow is the data write signal, trying to format a sector. Bad drive?
    ...
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    Yes agree, I'll try that next.

    Yes agree, I'll try that next.
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    No. These are absolutely standard Floppy cables....

    No. These are absolutely standard Floppy cables. I have some with twists and some without. I just thought it should have worked if it were jumpered as A: and on a straight cable. Actually the...
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    I have a 7900. Without the interface card that I...

    I have a 7900. Without the interface card that I am still looking for... I would sure buy one of your cartridges if one were available.
    Marc
  14. For sale? Any link?

    For sale? Any link?
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    Another weird thing happened in Win98 when I...

    Another weird thing happened in Win98 when I tried to put two Floppies (original 3.5" floppy as A: and the 5.25" as B:). The BIOS would recognize my two drives correctly, but the OS would only...
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    I can't edit my post above, but I found the...

    I can't edit my post above, but I found the meaning of the jumpers above:
    - IU is In Use. Says this changes under what conditions the front LED is lit. On my unit, it seems to only work if this was...
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    Woot. And I was finally able to format a 360k...

    Woot. And I was finally able to format a 360k disk from Windows XP, after installing Omniflop (http://www.shlock.co.uk/Utils/OmniFlop/OmniFlop.htm#Downloads) which replaces your WinXP floppy driver...
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    Solved it. The last bit was the motor thing and...

    Solved it. The last bit was the motor thing and it is a tricky one. I had a straight cable and was jumpered as A: (DS0). Then a thought went in my mind - wait, when they do a twist in the cable to...
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    Things started to make a lot more sense when I...

    Things started to make a lot more sense when I jumpered IU and RDY, but I think I have a bad drive.

    Good things:
    - disc drive is recognized, it does the head seek to check track count under BIOS...
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    Some progress. To eliminate termination issues, I...

    Some progress. To eliminate termination issues, I disconnected my 3.5 A: drive, reconfigured the 5.25 Chinon as DS0 (A: device) and jumpered the TERM on. It got recognized by the BIOS and OS as the...
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    Ah thanks a lot, almost! I could never find a...

    Ah thanks a lot, almost! I could never find a manual for one, because I googled FR-506 which is my drive. Not FZ-506. But unfortunately the jumpers are different on the two models. That said, this...
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    Did you ever solve your 5-1/4" drive problem? I...

    Did you ever solve your 5-1/4" drive problem? I have a very similar condition with my Chinon FR-506. It's a 1.2 MB drive. It's recognized by BIOS as a B: drive, the heads wiggle and the LED comes on...
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    Has you Flexowriter been claimed or are you still...

    Has you Flexowriter been claimed or are you still taking offers?
    Marc
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