[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Gmail - George
Sent: Saturday, June 02, 2018 8:10 AM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA-1500 Fan Noise - YouTube ?
One other thought to keep in mind - solid state amps need a lower delta T
than tube amps. Tubes like to run
in Barstow, CA so know the desert.
Tuscon is a nice town; visited in 1997.
73, Ed - KL7UW
From: Wes Stewart
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA-1500 Fan Noise - YouTube ?
What's a basement?? On towertalk they talk about letting the lawn grow over
ground radials.? I w
components.
Unfortunately, the same Omni VI was hit by lightning some years later.
73, Will, wj9b
CWops #1085
CWA Advisor levels II and III
http://cwops.org/
On Sat, 6/2/18, Gmail - George wrote:
Subject: Re: [Elecraft] KPA-1500 Fan Noise
One other thought to keep in mind - solid state amps need a lower delta T
than tube amps. Tubes like to run hot - solid state devices not so much.
I've seen a tube with the fins so hot that the solder was in globs, while
the transmitter was still operating. I doubt any solid state final would
h
ewart
Sent: Friday, June 01, 2018 9:28 PM
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] KPA-1500 Fan Noise - YouTube ?
What's a basement? On towertalk they talk about letting the lawn grow over
ground radials. I wonder what a lawn is. They also say to install ground rods
where the rai
ne 1, 2018 7:33 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] KPA-1500 Fan Noise - YouTube ?
Rich
You pretty much hit the nail on the head about solid state amps. As they say
there's no free lunch. Solid state has made great strides in high power
ampsbut its still solid state and
: Friday, June 01, 2018 5:55 PM
To: Elecraft@mailman.qth.net
Subject: [Elecraft] KPA-1500 Fan Noise - YouTube ?
This fan noise issue has me concerned to the point that I’m considering
cancelling my order.
While the amp won’t be on my operating desk, it will be on a rack next to my
operating desk
What's a basement? On towertalk they talk about letting the lawn grow over
ground radials. I wonder what a lawn is. They also say to install ground rods
where the rain will hit them. I wonder what rain is.
Wes N7WS
On 6/1/2018 6:05 PM, hawley, charles j jr wrote:
Some years ago we cooled
riginal Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Stravinsky via
Elecraft
Sent: Friday, June 1, 2018 7:33 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] KPA-1500 Fan Noise - YouTube ?
Rich
You pretty much hit the nail on the h
Some years ago we cooled a PDP11 by putting the fan remote and running a dryer
hose to the computer. How about putting the fan in the basement and the rig on
the desk where it’s handy?
Chuck Jack
KE9UW
Sent from my iPhone, cjack
> On Jun 1, 2018, at 7:57 PM, Michael Walker wrote:
>
> Bill
O Group at Groups.IO.
email: b...@wjschmidt.com
-Original Message-
From: elecraft-boun...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Bill Stravinsky via
Elecraft
Sent: Friday, June 1, 2018 7:33 PM
To: Elecraft Reflector
Subject: Re: [Elecraft] KPA-1500
Bill is correct
You have to move air to cool down those devices and it takes fans to do
it. Water cooling might work if you wish to modify it. :)
But, there is no free lunch as was mentioned. Be prepared that any 1500
watt LMDOS amp requires cooling but since there is no tube, they are built
i
Rich
You pretty much hit the nail on the head about solid state amps. As they say
there's no free lunch. Solid state has made great strides in high power
ampsbut its still solid state and a p/n junction or some form thereof. 1500
watts of heat in those junctions has to be cooled down or it
This fan noise issue has me concerned to the point that I’m considering
cancelling my order.
While the amp won’t be on my operating desk, it will be on a rack next to my
operating desk. Remoting the amp is not an option. Quite frankly I have no
interest in remoting the amp.
Is there anyone ou
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