Re: megaboard and ST-157R

[ralphp@gcstation.net (Ralph Wade Phillips)]

Hi there!

In article <58etlm$j0n@news.ecis.com>, pholton@ecis.com (Paul Holton) wrote:

> Well....I goofed...I posted this in comp.sys.apple2.comm when I should 
> have posted it here.
> This oughta' test your memory...I have a Megaboard HD controller card 
> that is used to control old MFM type drives up to 60megs in size. When 
> formatting the HD one needs to know the # of heads, cylinders and the # 
> of the Write precomp cylinder. I have an ST-157R 48 meg drive and I need 
> to know those 3 things. Can anybody hep me?
> Thanks, Paul
> 
> 
> --
> pholton@ecis.com

        The ST-157R is an RLL 2,7 version of the ST138 MFM drive.  As
such, it's got the same specs when run RLL (if it will - some of the later
157's would not run MFM, due to the bandpasses on the amps .. )

        615 cylinders, 6 heads, 17 sectors/track for the ST138, 26 s/t for
the ST157R.

        RwP

-- 
Ralph Wade Phillips, CET #LA-82
ralphp@gcstation.net