19 Jun
2010
19 Jun
'10
5:48 p.m.
On Saturday, June 19, 2010, Chuck Guzis wrote:
On 19 Jun 2010 at 19:50, Patrick Finnegan wrote:
MK3, on a Linux box. I could run FreeDOS on it without much trouble.
Not sure what "drivetec" is, but the
drive I used was an IBM
"2.4MB" floppy drive. I guess I didn't make that clear in my
message. The "2.4MB" drive read 1.2MB floppies just fine on the
Catweasel, but the 2.4MB floppies (which read ok as microcode
floppies) didn't produce useful results.
Never had to deal with these, but I suspect they're just 1Mbps
conventional 96 tpi drives.
What Catweasel are you using? If you want, I'll send you a little
DOS code to create a sample file and I'll be willing to take a look
at it. From what I remember (though my memory is a bit foggy,
it's been a few
years since I tried this), the catweasel histogram generator
(testhist
from Tim Mann's catweasel utilities) didn't
produce any helpful output.
Were these ever used on anything but the 3174?
That's a good question. I'm not sure that they were. The other things
that I can think of and have (3480, and 9434-C02) of a similar period
used either lower density (DD?) 5.25" floppies, or 3.5" floppies.
Drivetek/Kodak drives are a whole different smoke.
192 tpi, for the
2MB one, with positioning being done via an embedded servo setup on
the factory-formatted disks. They'll also read regular 360K floppies
just fine--what's interesting is that 360K mode is 600 RPM.
Neat.
Pat
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