[Drake] Cooling fans - blow in or out?

[Mike Sanders K0AZ]

They are basically exhaust fans. 

K0AZ
Michael D. Sanders
18169 Highway 174
MT Vernon, MO 65712
6 Meter DXCC #436,  WAZ #37, WAS #1094, VUCC #605/1156, WAC, WAJD

1970 Chevelle 327/TH350/331

 



-----Original Message-----
From: drake-bounces at mailman.qth.net
[mailto:drake-bounces at mailman.qth.net]On Behalf Of Chris Codella, W2PA
Sent: Saturday, February 12, 2005 12:40 PM
To: Drake list
Subject: [Drake] Cooling fans - blow in or out?


I'm about to install a cooling fan on my T-4XB and TR-4, having seen 
many ways to do it.  But what's the concensus on the list about blow-in 
vs. blow-out?  I've seen it recommended both ways.

The only recommendation I saw that also included a rationale was one 
posting where someone said to orient the fan blowing out because the 
only time one wants to blow in is if there is a forced-air handling 
design built in, as exists in many amplifiers (i.e. chimneys, etc.).  I 
must say that most rigs I see with factory mounted fans on the back that 
also don't have air handling features inside, do in fact blow out, not in.

What's the concensus among the Drake crowd here?  Please don't recommend 
one way or the other without giving a reason.

Thanks!
73, Chris, W2PA

______________________________________________________________
Drake mailing list
Home: http://mailman.qth.net/mailman/listinfo/drake
Help: http://mailman.qth.net/mmfaq.html
Post: mailto:Drake at mailman.qth.net
-- 
No virus found in this incoming message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.8.7 - Release Date: 2/10/05

-- 
No virus found in this outgoing message.
Checked by AVG Anti-Virus.
Version: 7.0.300 / Virus Database: 265.8.7 - Release Date: 2/10/05