[sebhc] Diskette Drives

Barry Watzman Watzman at neo.rr.com
Sat Jun 17 17:17:23 CDT 2006

They didn't exist.  And, actually, most of the SA-400's (as far as I know
the only 35-track drives) would do 40 tracks .... just send it more stepping
pulses after the 35th track (the stepping mechanism, a wheel with a spiral
groove in it, didn't end that abruptly).  But alignment for 35 and 40 tracks
drives was the same.  Track 0 was in the same place, the track-to-track
spacing was the same, there were just 5 more tracks on the center(inside) of
the media.

-----Original Message-----
From: sebhc-bounces at sebhc.org [mailto:sebhc-bounces at sebhc.org] On Behalf Of
Lee Hart
Sent: Saturday, June 17, 2006 6:08 PM
To: sebhc at sebhc.org
Subject: Re: [sebhc] Diskette Drives

dwight elvey wrote:
> The H8/89 normally only uses 35 tracks, even with a
> 40 track drive, for hard sectored.

No, you are mistaken. All Heath 5.25" drives were 40-track. So it is
possible that those Tandons were 35 track; but I doubt it. I've never
seen a Tandon 35-track drive, but it's possible that they may exist.
Ring the bells that still can ring
Forget the perfect offering
There is a crack in everything
That's how the light gets in    --    Leonard Cohen
Lee A. Hart, 814 8th Ave N, Sartell MN 56377, leeahart_at_earthlink.net
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