27 Dec
2010
27 Dec
'10
2:33 p.m.
On Sun, 26 Dec 2010, Chuck Guzis wrote:
> I find it more interesting that some of the 135 tpi users selected
> odd values for the upper limit. HP used 66, I think and Jonos used
On Mon, 27 Dec 2010, Christian Corti wrote:
HP used 35 for their 5.25" DS drives (e.g.
HP82901) and 70 for their 3.5"
SS drives (e.g. HP9121).
35 was, of course the original Shugart SA400. I guess that HP never heard
about, nor believed in, the extension to 40 of the "standard".
Then, of course, 79 was simply doubling the SA400 "standard".
"Standards aew wonderful things; everybody can have a unique one of their
own." - George Morrow
--
Grumpy Ol' Fred cisin at xenosoft.com