[hpsdr] To suck or to blow, that is the question.

[John Koster]

Good for a 'dumb' fan, but many of those I can buy at Fry's have a control 
lead which when left unterminated lets the fan run full speed.  If you 
have the right control voltage going to it, you don't need all the 
circuitry shown in your link.  Guess one needs to find the schematic of a 
Mobo and duplicate that circuit if it's not buried in one of the large 
ICs.  Perhaps it's a signal out of the processor these days?  

On Sat, 11 Jul 2009, Luis Perdomo wrote:

> ***** High Performance Software Defined Radio Discussion List *****
> 
> Speed & temp controller for muffin fans and the like:
> 
> http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=120444743805
> 
> Luis, NZ5U
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-- 
73,
John, W9DDD


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