HP drives

[Fred Cisin]

> 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