Just get a weekly delivery of a large container of liquid nitrogen and rig
up a way to spray it on the heatsinks... It can be very quiet, it has a
large temperature difference, so it will be efficient, and it may drive the
chips into superconducting status which will further improve the
Frankly I agree with Bob-K4TAX:
If you ever have chance to visit the sound booth at either a
broadcast station or recording studio, note the use of acoustic tile.
The Super-Contest station of KL7RA (sk) is lined with acoustic tile
and you note immediately how quiet the room sounds (even with
. This must mean STOP!
"Dave, Dave. What are you doing Dave?"
73, Will, wj9b
CWops #1085
CWA Advisor levels II and III
http://cwops.org/
On Tue, 6/5/18, Walter Underwood wrote:
Subject: Re: [Elecraft] KPA1500 Fan Noise - Not An Issue
To:
I would recommend reading the specs. As I remember, it is ICAS, five minutes
on, five minutes off. But you should check for yourself.
wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)
> On Jun 4, 2018, at 5:06 PM, Paul Baldock wrote:
>
> Can the KPA1500 run brick
Sent: Monday, June 4, 2018 4:19 PM
Subject: Re: [Elecraft] KPA1500 Fan Noise - Not An Issue
That's fine if cost is no object. Acoustics is part of the problem --
ignore it at your peril. :)
73, Jim K9YC
On 6/4/2018 3:06 PM, Mel Farrer via Elecraft wrote:
> While I appreciate all of the so
Can the KPA1500 run brick down 100% duty cycle at 1500W while
maintaining the temperature in a safe range? Anybody tried it?
- Paul
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
A properly damped acoustic environment will enhance the SSB voice on the
air. While a poor acoustic environment will sound like crap, and no
amount of EQ , processing or microphone will correct the undesirable
artifacts. Give some thoughts to improving your radio room
acoustics. Even a
That's fine if cost is no object. Acoustics is part of the problem --
ignore it at your peril. :)
73, Jim K9YC
On 6/4/2018 3:06 PM, Mel Farrer via Elecraft wrote:
While I appreciate all of the sound proofing suggestions, the old rule keeps coming
back.: " Stop the source as much possible
t] KPA1500 Fan Noise - Not An Issue
One of my favorite methods of sound treatment is the products in the
link following: http://www.sonex-online.com/Pro%20Audio.htm
There are many other products, and many individuals use their own
creative means to be effective in sound absorption.
73
One of my favorite methods of sound treatment is the products in the
link following: http://www.sonex-online.com/Pro%20Audio.htm
There are many other products, and many individuals use their own
creative means to be effective in sound absorption.
73
Bob, K4TAX
On 6/4/2018 1:00 PM, Jim
On 6/4/2018 8:34 AM, Bob McGraw K4TAX wrote:
Room acoustics play a big part of the "how loud" factor. Absorptive
materials applied to the walls an ceiling of a room, specially small
rooms, do reduce the build up of sound / noise emitted from fans and
blowers.
YES! This is excellent advice.
Room acoustics play a big part of the "how loud" factor. Absorptive
materials applied to the walls an ceiling of a room, specially small
rooms, do reduce the build up of sound / noise emitted from fans and
blowers.
73
Bob, K4TAX
On 6/4/2018 10:04 AM, Richard Thorne wrote:
Don,
Thanks
Don,
Thanks for the updated information. It's quite helpful.
For those of you that don't think that fan noise is a potential problem,
you need to understand my point of view on this.
I've tried very hard to get a good clean noise free signal to my speaker
or head phones.. This starts with
Well said, Don, and I agree. Its not an issue with me either. Even though
its my first solid state amp I realize the need to cool it. They're already up
to suggestingwater cooling. I think we need to talk about hydrogen cooling,
something the radio room on the Enterprise from Star Trek
-
From: elecraft-boun...@mailman.qth.net On
Behalf Of Don Butler
Sent: Sunday, June 3, 2018 6:33 PM
To: elecraft@mailman.qth.net
Subject: [Elecraft] KPA1500 Fan Noise - Not An Issue
A post this afternoon refered to KPA1500 fan noise as an "issue" that might
need to be addressed. I
A post this afternoon refered to KPA1500 fan noise as an "issue" that might
need to be addressed. I personally think that is an unfair suggestion.
Fan noise with this amplifier is NOT an issue to me. I have made previous
comments and have also posted a video on this thread, and if I have given
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