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9114B and HP-41 HP75C
04-26-2020, 01:47 PM (This post was last modified: 04-26-2020 02:07 PM by Dave Frederickson.)
Post: #8
RE: 9114B and HP-41 HP75C
(04-26-2020 09:06 AM)Erik-M Wrote:  Do I understand well that the newer linux LIF utils run on faster hardware but still need the old fashioned floppy drive

I've used the Python version of the LIF utilities on newer hardware without issue. https://github.com/bug400/lifutils

In order to work with LIF discs on a PC you need an old floppy disc controller and to test that you need to run TESTFDC, above.

Of course you don't need to use a PC at all. What you do need are some DS/DD floppy discs. Don't use HD discs, find some double-density discs on eBay.

Regarding the 9114's, the lubrication in drive mechanisms has a tendency to get gummy over time . You need to remove the top covers and carefully insert a disc into the drive. In a gummed up mechanism the disc will have a tendency to catch on the drive head and severely damage it.

If the mechanism does not operate smoothly when inserting and ejecting a disc then it needs to be cleaned with isopropyl alcohol.

Once the drive is all together you can run a self-test by inserting a disc and turning on the power.

Quote:Yesterday late I found already some LIF software but it doesn't work from a dos VM.

Yeah, that won't work. You need something that can understand LIF. Here's the definitive LIF article.
https://www.hpmuseum.org/cgi-sys/cgiwrap...gi?read=24


Dave

Edit: Try running HPDir from the DOS VM. I think you should be able to read the discs with standard hardware.
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Messages In This Thread
9114B and HP-41 HP75C - Erik-M - 04-25-2020, 06:38 PM
RE: 9114B and HP-41 HP75C - rprosperi - 04-26-2020, 01:58 AM
RE: 9114B and HP-41 HP75C - Craig Bladow - 04-26-2020, 03:54 AM
RE: 9114B and HP-41 HP75C - rprosperi - 04-26-2020, 01:45 PM
RE: 9114B and HP-41 HP75C - Craig Bladow - 04-27-2020, 03:27 AM
RE: 9114B and HP-41 HP75C - Erik-M - 04-26-2020, 09:06 AM
RE: 9114B and HP-41 HP75C - Dave Frederickson - 04-26-2020 01:47 PM
RE: 9114B and HP-41 HP75C - Erik-M - 04-26-2020, 03:38 PM
RE: 9114B and HP-41 HP75C - Erik-M - 04-26-2020, 06:16 PM
RE: 9114B and HP-41 HP75C - Erik-M - 04-26-2020, 08:11 PM
RE: 9114B and HP-41 HP75C - Erik-M - 04-29-2020, 05:42 PM
RE: 9114B and HP-41 HP75C - Erik-M - 04-30-2020, 11:47 AM



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