Five and quarter drives

From: Tom Jennings <tomj_at_wps.com>
Date: Fri Feb 11 18:04:39 2005

On Fri, 11 Feb 2005, Eric Smith wrote:

>> Manually recal the drive, turn the head-positioner and count the
>> bumps. If > 40...
>
> Does that really work? I thought a lot of the half-height drives
> used the same stepper for 40 or 80 track, and the drive circuitry
> arranged for double-stepping on the 40 track models. Or maybe I'm
> confused again.

It won't work if they microstep. I suppose that's possible, in
which case a 96tpi drive would look like a 48.

But if it does step >> 40 tracks, then it's 96tpi. I agree, 41,
42, ... could just extra room. If 40 bumps leaves the head half
way to the center, well there you go.
Received on Fri Feb 11 2005 - 18:04:39 GMT