Marvin Johnston wrote:
A couple of questions pop up on this Northstar diskette
discussion. First, was
the oersted rating the same for all of the N* Horizon (and Advantage?)
diskettes? A
I never had but a single type of floppy media for the single and double
density Northstar controllers.
I was lucky to have almost all Verbatim 10 sector disks and they worked
fine.
Unfortunately a lot of my 10 sector disks have apple stuff on them, as
at one time there
was a time you could get the hard sector diskettes a log cheaper than
the better soft
sector ones, and they worked fine. I don't have a working apple 2 with
a cpm card
to try to copy over to soft sector disks. Only thing I'd really keep is
the bios source
anyway.
As to using 10 sector 8" diskettes, why? I put both a northstar and a
tarbell in the
same box, which was a northstar. I could boot from either controller
depending on
which format I wanted to be the "A" drive, and modified the bios to have the
read / write code for both diskettes.
No need for any unusual work on the diskettes. 5 1/4" diskettes were all
northstar
cpm, and the 8" ones were standard IBM ones read and written by the tarbell
controller.
Jim