25 May
2006
25 May
'06
8:29 p.m.
On 5/25/2006 at 10:17 PM ard at p850ug1.demon.co.uk wrote:
Isn't this just what's laid down by a standard Sony 0AD-1 floppy drive?
(600 RPM, IIRC and the original 3.5" drive, not the 300 RPM nonsense that
we now have).
I used to say
"MOST" soft-sectored floppies. Now, I'm not even sure of
that.
[...]
> RE-WRITING to Epson Geneva PX-8 is awkward (67.5 TPI) Talking of oddball floppies (and Epson), I haev,
somewhere, an Epson
thing about the size of the TF20, but labelled BM-5 (IIRC). It contains a
single 5.25" drive. Now for the odd part. The cables to that drive look
like ST412 _hard_ drive cables (i.e. a 34 pin and a 20 pin connector).
The controller board, which has a parallel interface connector back to
the host (pesumably it goes with some special I/O card for a QX10 that I
don't have) has a hard disk controller chipset on it. But the drive sure
looks like an overcomplicated floppy drive.
What do I have here, and what sort of disks does it use?
Does the floppy have two positioner motors (one coarse, one fine)? If so,
maybe what you've got is a Drivetek drive. But Fred would recognize one of
those, so it must not be that.
Cheers,
Chuck