working magnetic drum stores?

From: Ethan Dicks <dickset_at_amanda.spole.gov>
Date: Thu Apr 1 14:39:36 2004

On Thu, Apr 01, 2004 at 09:39:40AM -0500, Paul Koning wrote:
> >>>>> "Tony" == Tony Duell <ard_at_p850ug1.demon.co.uk> writes:
>
> >> Drives like the RK05 retract the heads as part of spindown, so the
> >> heads never land on the platter.
>
> Tony> You hope... If the power fails and your NiCd pack isn't any
> Tony> good, then the heads will land on the platter with nasty
> Tony> results...
>
> NiCd? You must be thinking of the big capacitors (not batteries) that
> do the emergency head retract in the event of powerfail.

Tony is correct. RK05 and RK06/RK07 drives use 3-cell NiCd packs. I've
had to rebuild several. Dunno what RK03s use, though.

-ethan

-- 
Ethan Dicks, A-130-S      Current South Pole Weather at 01-Apr-2004 20:31 Z
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Ethan.Dicks_at_amanda.spole.gov     http://penguincentral.com/penguincentral.html
Received on Thu Apr 01 2004 - 14:39:36 BST

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