On 16 Apr 2001, Frank McConnell wrote:
> > Micropolis had 2 major models of their 5.25" drive. One was 48TPI,...
> > The other was 100 TPI, with 77 tracks, not to be confused with the far
> Hmm, here I sit looking at one of a pair of Micropolis model 1115-VI.
> It's a 5.25" full-height drive, serial 0372. Someone (not me) helpfully
> wrote on it with a marker:
> 96 TPI
> 2 SIDED
> 5 1/4
> Date codes on the ICs would seem to place its manufacture sometime
> in early-mid 1983.
> Was the someone with the marker perhaps mistaken?
> Hard to tell from http://www.mfarris.com/know/floppy/floppy2.html --
> that doesn't seem to get any more specific than "SD"/"DD"/"QD"/"HD".
They might be right. I had heard that Micropolis came out later with a
96TPI, but I've never seen it. The date code and the double sided is
consistent with that. Is it really 2 sided? What kind of door assembly
does it have?
But they might be mistaken, and have ASSUMED 96TPI due to it not being
48TPI, and/or having about 80 tracks. I've even seen people label 720K
5.25" drives as being 1/2M, "because it's NOT a 360K".
Unfortunately, I no longer have my files of sales literature and spec
sheets, that would have at least let us compare that model number with
known older ones.
--
Fred Cisin cisin_at_xenosoft.com
XenoSoft http://www.xenosoft.com
PO Box 1236 (510) 558-9366
Berkeley, CA 94701-1236
Received on Tue Apr 17 2001 - 11:17:09 BST