Date   : Mon, 25 Jan 1988 21:29:41 EST
From   : "Mark E. Becker" <MBECK@AI.AI.MIT.EDU>
Subject: Followup: Disk Drive Powerdown Problem

Hello -

     My thanks to those that responded to my help request regarding
turning off floppy drives with the doors closed.

     The Fix (at least the one I implemented): Installed some relays
in series with the power feed to the disk drives.  These relays were
some generic DPST types from a local surplus outfit.. with 110 VAC
coils.

     The coils are bridged across the power supply transformer
primary.  Now, if the AC power drops, power to the drives is cut
before the supply has time to fall to the "critical" voltage level.

My thanks again to the respondents.

Regards,
Mark