8 Apr
2007
8 Apr
'07
5:21 p.m.
On Apr 7, 2007, at 8:42 AM, Steven N. Hirsch wrote:
No, they definitely exist, I've installed a great many of them
into machines years ago. The company I worked for sold a lot of
PeeCees (my karma just hasn't been the same) and we used a HardCard
knock-off extensively; it was a 3.5" MFM drive bolted to a frame
attached to an MFM controller. I *think* the drive was made by
Miniscribe but I am not sure about that. It was a 20MB drive.
John Kourafas
wrote:
I have an extensive collection of MFM/RLL drives and have _never_
run across one with that interface in a 3.5" form-factor. Not sure
that anything of this sort existed. 5.25" 1/2-ht. was about as
sophisticated as they got. Also looking for a Micropolis 1325 MFM Drive,
71/80MB , I've seen
both the ST506 and Mic. 1325 on eBay for like 600.00 which I
think is crazy...
What's the largest capacity 3.5" MFM HDD available? The largest MFM drive ever made was _probably_ the
Maxtor 2190 at
190MB unformatted. ISTR that there was a logical limit to the
number of cylinders due to the control protocol (or perhaps
limitations in the PC BIOSes of the time) and physical limits to
the number of sectors/cylinder and the number of platters (the 2190
had 15 or 17?)
I believe this is correct.
-Dave
--
Dave McGuire
Port Charlotte, FL