[Coco] Adding a CoCo 2 Case Fan

[Chad H]

Is that safe?  I don't want to draw power from any point on the motherboard
if it's going to tax it to dangerous levels.

-----Original Message-----
From: coco-bounces at maltedmedia.com [mailto:coco-bounces at maltedmedia.com] On
Behalf Of Mike Pepe
Sent: Friday, April 18, 2008 11:09 AM
To: CoCoList for Color Computer Enthusiasts
Subject: Re: [Coco] Adding a CoCo 2 Case Fan

Chad H wrote:
> Well I already have a small bare board that turns 120VAC to 12VDC, so was
> going to mount that inside :)
> 

The power supply already does that. No need to add another power supply 
to just run a fan.

I usually grab 12v from the anode side of one of the fat diodes. Ground 
is pretty easy to come by. Usually I just solder to the bare tin near 
one of the copper keyboard supports.

This voltage is unregulated, so as a great side effect, you get audio 
feedback as to how busy your CoCo is.


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