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From: schwrtze@csd2.UUCP (Eric Schwartz group)
Newsgroups: net.micro.mac
Subject: Power supply remedies
Message-ID: <3320007@csd2.UUCP>
Date: Tue, 3-Sep-85 02:28:00 EDT
Article-I.D.: csd2.3320007
Posted: Tue Sep  3 02:28:00 1985
Date-Received: Thu, 5-Sep-85 01:05:05 EDT
Organization: New York University
Lines: 16

I have seen quite a few notes go by about this problem. Having had 2 supply
problems requiring board replacement this is how I have so far successfully
dealt with this problem. A muffin fan of ~3 1/4 " sq. is placed over the
rear left vent ducts (looking from the front of the unit). The airflow is
in a 'pull mode' i.e. air is drawn from the chassis. This method can be cheaply
obtained via a pullout from you local electronics surplus. The fan should be 
supported by a box of similar dimensions and ~1" thick. (A Beeman airgun pellet
box has been successfully tested). I have not had a failure with this method BUT
Caveat: My two supplies died after two continuous spells of two month non-stop
running. You analog people out there can fill me in about why this might happen.

	Hedley Rainnie.

NYU brain research labs  And Allied corp E/O

hedley@alaya