Re: easy project? apple scsi hd on a card ie..scsi expander

[salfter@salfter.dyndns.org.is.invalid (Scott Alfter)]

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In article <ZOednVygVYQBfrfdRVn-hQ@comcast.com>,
Bill Garber <willy46pa@comcast.net> wrote:
>But seriously, that is very interesting. Did you drill vent holes in both
>sides? I'll bet the System Saver would keep it next to room temperature
>with holes in both sides and the fan sucking air through from the opposite
>side. Sounds like a very easy way to improve on the stability of Apple II
>power supplies without worry.

I opened it up, removed the guts (since the board hangs upside-down in the
section that needs to be drilled), and drilled holes on each of the long
sides covering a fair amount of the surface.

To help it out further, you can cut out a hole in the bottom of the case
under the keyboard and mount an 80mm case fan.  For power, you can tap the
power-supply +12 and ground leads, plug into the video modulator header
(don't recall offhand which pins you want), or run switched AC out of the
power supply into a small separate 12V DC supply to power the fan (used a
small 12V transformer from Radio Shack and a full-wave bridge rectifier,
capacitor, and 7812 regulator from the junkbox).  I suppose you could also
use a System Saver, but I never liked the idea of hanging a big ugly box off
the side of my computer. :-)

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