[Elecraft] KPA500 question about cooling

[Fred Smith]

I guess it boils down to whatever trips your trigger and the people who
designed it said to put it on top if you wanted, no problems.


73,
Fred/N0AZZ
K3 Ser #'s 6730/5299--KX3 # 2573--K2/100--KAT100
P3/SVGA--KPA500--KAT500--W2



-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Richard Gillingham
Sent: Monday, May 27, 2013 8:31 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] KPA500 question about cooling

Yes.  
The very first statement under Installation in the KPA500 owner's manual is
the following:

"IMPORTANT:  Provide at least 2 inches (5 cm) clearance behind the fan and
above the amplifier for proper air flow."

Nuf said.

73, 
Gil, W1RG


> From: w4as at bellsouth.net
> Date: Sun, 26 May 2013 23:39:00 -0400
> To: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] KPA500 question about cooling
> 
> I do a lot of meteor scatter on 6 meters, and I've tried the tuner both
above and below the amp. 
> 
> I've found the KPA500 runs cooler with the KAT500 tuner below the amp.
> 
> 73 de Sebastian, W4AS
> 
> 
> 
> On May 26, 2013, at 6:23 PM, mcduffie at ag0n.net wrote:
> 
> > On Sun, 26 May 2013 15:06:25 -0700, Ron D'Eau Claire wrote:
> > 
> >> The KAT500 may be placed on TOP or under the KPA500. 
> > 
> > I wouldn't put it on top.  I can hear fan and air changes if I get
within a half
> > inch of the intake slots with my hand at higher speeds.  You can feel
the air
> > flow considerably at high speed with your hand an inch over the opening.
That
> > means it does affect the airflow to put something that close.  I don't
care if
> > the factory or a manual says you can do it.  I sure wouldn't run mine
that way.
> > 
> > Gary
> 
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Version: 2013.0.2904 / Virus Database: 3184/6360 - Release Date: 05/26/13