I have been using my silent SPA 8230 power supply for many years. Its mains
switch started show contact errors, would like to replace it. As QRP Shop
Biz in Germany closed last year need help to find where can I find switch
replacement. Could you please help with the switch type and manufacturer
Folks - thanks for all the input. I think I may have found one of the culprits
in the system - oxidation. I put everything back together the way it was to
begin with so I could switch back and forth between the K3 and KX3 power
displays. I have a KXPA100 behind the KX3 so the load on the MFJ
Yes large diameter cable is required if you want to keep the TX voltage
high. I also replaced the Elecraft 12ga? supplied cable with 10 gauge when
using the small switching power supply while traveling. I use 8 gauge at
home since my cable is longer but it was tricky stuffing this into the
tiny
On Thu,3/9/2017 9:29 PM, George Thornton wrote:
From what I am learning the K3 needs a strong, stable power supply to be
reliable.
ANY ham rig needs that. :) At 100W, the K3 draws about 20A keydown. Do
Ohm's Law on the wiring between the power supply and the K3. The simple
answer is
Minimize all cable lengths. No more than necessary.
Verify (actually look at) that SLL APP connectors are FULLY SEATED! Meaning
inspect the open end for seeing only one price of metal. Check the Anderson web
site for a cut away picture of the cross-section of a properly assembled APP.
I use
I connect my voltage boost, like yours a N8XJK, between the
power supply mess and the K3. (I run it in RF Enabled mode.)
That results in my K3 getting the voltage it needs, and the
voltage loss in all the other connections getting made up.
73 Bill AE6JV
On 3/9/17 at 9:00 PM, w6...@me.com
To: Elecraft Reflector Reflector <elecraft@mailman.qth.net>
Subject: Re: [Elecraft] K3 Power Supply Question
I put my DMM leads on the front terminals of the 4545 and with key down, no
change at all: 13.9V, so it appears that MFJ gets a pass on this one.
To do my testing I had run the 4545 di
I put my DMM leads on the front terminals of the 4545 and with key down, no
change at all: 13.9V, so it appears that MFJ gets a pass on this one.
To do my testing I had run the 4545 directly to the K3 and not through the Rig
Runner. However, to do that I had simply hooked the cable from the
;elecraft@mailman.qth.net>
Subject: Re: [Elecraft] K3 Power Supply Question
Jim,
Get your DMM out and make the same measurement at the power supply terminals.
If you see a substantial voltage sag during transmit there, you can blame the
power supply. But if the voltage stays close to constant,
I run an Astron 50 amp linear supply and a 4' cord between it and the K2
I see .6 of a volt drop on keydown at 100 watts
From: James Bennett <w6...@me.com>
To: Elecraft Reflector Reflector <elecraft@mailman.qth.net>
Sent: Thursday, March 9, 2017 8:09 PM
Subject: [Elecra
Jim,
Get your DMM out and make the same measurement at the power supply
terminals.
If you see a substantial voltage sag during transmit there, you can
blame the power supply. But if the voltage stays close to constant, the
problem is voltage drop in the power cabling.
The RigRunner will
Hi All -
I’ve been powering my station for anywhere from 7 - 9 years (can’t recall
exactly how long!) with an MFJ4245MV switching power supply. I use it in
conjunction with a 72 watt GE solar panel, 110 Ah AGM battery, ProStar charge
controller, N8XJK Boost Regulator, and a KI0BK Low Loss
John,
If your fuseholders are of the 3AG type, consider replacing them with
the blade type fuseholders which have much better contact resistance
characteristics. The in-line 3AG fuseholders often do not have
sufficient pressure contact with the ends of the fuse for a good
connection. Poor
Milverton / W9MMS
From: J tsc...@gmail.com
To: 'John, 9H5G' kk4...@gmail.com; elecraft@mailman.qth.net
Sent: Monday, March 16, 2015 3:16 PM
Subject: Re: [Elecraft] K3 power supply fuses
You might closely examine the type of connections inside the holders. Some
aftermarket automotive
I power my K3 from three sealed lead-acid batteries charged from
a solar panel. I have an inline fuse holder for automotive fuses
in the plus lead to each of the batteries. They have OES
stamped into the plastic covers.
If the fuse holders are warm to the touch, and there is not
other source
Hi John,
The KX3's KXPA100 amplifier's power cable has two inline fuses in
waterproof enclosures, one for each of the supply cables. They take
standard automotive fuses, and they're very robust. If you bought (or
scrounged) a KXPA100 power supply cable, it would work well since it
has APPs on
I use 40A self-resetting automotive circuit breakers (pos/neg) in my
truck (not the K Line station) which protects the wiring nicely, are
sealed and I've never had to muss with them. I then fuse the radios, at
the radios, with the appropriate fuses.
Rick wa6nhc
On 3/16/2015 2:18 PM, Bill
Fred,
As are lead acid batteries.
I have been using AGM batteries for years now with the K3 plus blade fuses
also.
Portable ops 24/7 here
Gary
Vk1ZZ
K3, KX3, KPA500-FT, KAT500-FT,P3.
On 17/03/2015 9:06 AM, Fred Jensen k6...@foothill.net wrote:
I've been using the automotive blade-type
I've been using the automotive blade-type fuses for several years and
find them to be very low resistance which remains constant over time.
The wiping action also keeps the contacts clean. They're the ones in
the RigRunner distribution boxes. In-line cartridge fuse holders are
problematical.
My K3 is powered from a car battery as I am always /P. I have installed
fast-blow fuses rated at 25 A in each of the supply lines.
Operating at 80W RTTY this afternoon, I noted that I was getting a low voltage
warning before I would have expected it. On examining the power cable, I found
the
] On Behalf Of John,
9H5G
Sent: Monday, March 16, 2015 13:12
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 power supply fuses
My K3 is powered from a car battery as I am always /P. I have installed
fast-blow fuses rated at 25 A in each of the supply lines.
Operating at 80W RTTY this afternoon, I
...@mailman.qth.net
[mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Matt Zilmer
Sent: Wednesday, June 12, 2013 9:55 PM
To: Randy Cook
Cc: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 Power Supply
Well, shucks. Maybe I'll have to buy one of 'em. The Samlex 1235 is still
going strong
Second the Powerwerx recommendation, small and quiet. I previously had two
1225 Samlex power supplies. Both died early, first one under warranty. HRO sent
the unit in for repair (apparently in Canada), took over a month to get a
replacement supply. That unit failed soon after the 90 day
Well, shucks. Maybe I'll have to buy one of 'em. The Samlex 1235 is
still going strong here, but can't have too many PSU's around!
73,
matt W6NIA
On Wed, 12 Jun 2013 16:51:46 -1000, you wrote:
Second the Powerwerx recommendation, small and quiet. I previously had two
1225 Samlex power
FWIW, I've been running my K3 off of an Astron 20A for six years without a
hitch.
Yes, the K3 is rated to draw more than 20A on some bands but not enough over
to trip the over-current circuit.
And the 20A is rated ICAS (intermittent commercial and amateur service),
which is the load the K3
: Re: [Elecraft] K3 Power Supply
Well, shucks. Maybe I'll have to buy one of 'em. The Samlex 1235 is
still going strong here, but can't have too many PSU's around!
73,
matt W6NIA
On Wed, 12 Jun 2013 16:51:46 -1000, you wrote:
Second the Powerwerx recommendation, small and quiet. I previously
Subject: Re: [Elecraft] K3 Power Supply
Well, shucks. Maybe I'll have to buy one of 'em. The Samlex 1235 is
still going strong here, but can't have too many PSU's around!
73,
matt W6NIA
On Wed, 12 Jun 2013 16:51:46 -1000, you wrote:
Second the Powerwerx recommendation, small and quiet. I
To: elecraft@mailman.qth.net
Subject: Re: [Elecraft] K3 power supply recommendations
I have a question on adjusting the voltage a bit higher for use with the K3.
I was thinking of 14.5 V, as others have mentioned, and adjusting voltage on
receive.
I have an accurate voltmeter.
Should I set
that keeps a 95AH AGM battery charged,
but before that was used normally without incident.
--- On Tue, 4/16/13, Gary K9GS garyk...@wi.rr.com
wrote:
From: Gary K9GS garyk...@wi.rr.com
Subject: Re: [Elecraft] K3 power supply recommendations
To: elecraft@mailman.qth.net
Date: Tuesday, April 16
of equipment running at
the same time.
73, Ed - KL7UW
From: Eugene Balinski euge...@nni.com
To: Wes Stewart n...@yahoo.com,elecraft@mailman.qth.net,
garyk...@wi.rr.com
Subject: Re: [Elecraft] K3 power supply recommendations
Message-ID: web-493727...@admin.nni.com
Content-Type: text/plain
From: Edward R Cole kl...@acsalaska.net
To: Elecraft@mailman.qth.net
Sent: Wednesday, April 17, 2013 10:19 AM
Subject: Re: [Elecraft] K3 power supply recommendation
Wes,
As that may be (it depends on ambient air temp), most hams are not transmitting
key-down
From: Eugene Balinski euge...@nni.com
To: Wes Stewart n...@yahoo.com,elecraft@mailman.qth.net,
garyk...@wi.rr.com
Subject: Re: [Elecraft] K3 power supply recommendations
Message-ID: web-493727...@admin.nni.com
Content-Type: text/plain; charset=ISO-8859-1
Another vote for the RM-35. I have had
Good morning everyone ,
I think I have found a very nicely maintained and equipped K3 to purchase. Any
purchase recommendations as to a well constructed and trouble free power supply?
Thanks
Tom
WD5DFE
__
Elecraft mailing list
Home:
The K3 in question is a K3/100. Thanks,
Tom
On Apr 16, 2013, at 6:26 AM, Tom Branton tbran...@alvincollege.edu wrote:
Good morning everyone ,
I think I have found a very nicely maintained and equipped K3 to purchase.
Any purchase recommendations as to a well constructed and trouble
it
about 3 years ago.
73, Doug VE3MV
- Original Message -
From: Tom Branton tbran...@alvincollege.edu
To: Tom Branton tbran...@alvincollege.edu
Cc: elecraft@mailman.qth.net
Sent: Tuesday, April 16, 2013 8:03 AM
Subject: Re: [Elecraft] K3 power supply recommendations
The K3
] On Behalf Of Tom Branton
Sent: Tuesday, April 16, 2013 6:27 AM
To: Tom Branton
Cc: elecraft@mailman.qth.net
Subject: [Elecraft] K3 power supply recommendations
Good morning everyone ,
I think I have found a very nicely maintained and equipped K3 to purchase.
Any purchase recommendations as to a well
On Tue, Apr 16, 2013 at 4:26 AM, Tom Branton tbran...@alvincollege.edu wrote:
I think I have found a very nicely maintained and equipped K3 to purchase.
Any purchase recommendations as to a well constructed and trouble free power
supply?
This is a recurring topic - search for k3 power supply
I've used an Astron RS-35M very happily for years. Had to turn it up a tad for
the K3.
Tip: The voltage adjustment is on the under side of the board..
73, Mike NF4L
On Apr 16, 2013, at 8:03 AM, Tom Branton tbran...@alvincollege.edu wrote:
The K3 in question is a K3/100. Thanks,
Tom
: Re: [Elecraft] K3 power supply recommendations
I've used an Astron RS-35M very happily for years. Had to turn it up a tad
for the K3.
Tip: The voltage adjustment is on the under side of the board..
73, Mike NF4L
__
Elecraft
- Original Message -
From: Mike Reublin
To: Tom Branton
Cc: elecraft@mailman.qth.net
Sent: Tuesday, April 16, 2013 9:05 AM
Subject: Re: [Elecraft] K3 power supply recommendations
I've used an Astron RS-35M very happily for years. Had to turn it up a tad
for the K3.
Tip
, 2013 9:05 AM
Subject: Re: [Elecraft] K3 power supply recommendations
I've used an Astron RS-35M very happily for years. Had to turn it up a tad
for the K3.
Tip: The voltage adjustment is on the under side of the board..
73, Mike NF4L
...@alvincollege.edu
Sent: Tuesday, April 16, 2013 7:26 AM
To: Tom Branton tbran...@alvincollege.edu
Cc: elecraft@mailman.qth.net
Subject: [Elecraft] K3 power supply recommendations
Good morning everyone ,
I think I have found a very nicely maintained and equipped K3 to purchase.
Any purchase recommendations
My RS-35A has been on and in use 24/7 (except during storms and
vacations) for well over 25 years. I plan on replacing it just because
this summer - with a new one.
Bill W2BLC
__
Elecraft mailing list
Home:
One of mine is over 30 years old ... it gets opened about one
a year to have the dust blown out, have screws/bolts checked
(filter cap terminals, etc.) and the output voltage gets checked.
Never a bit of trouble ...
My newer unit is perhaps five years old ... it gets the same
treatment also no
I use either my Astron RS70M or my RS35M at my shack in San Diego. Both are
really great. I got the larger astron for use with a couple larger mobile solid
state amps and my TS480hx.
I also have a powererx 30 amp power supply and a RS35 (no meter) at my other
shack in Texas. Both of those
If it ain't broke ... just open it up, blow out the dust, and tighten all of the screws
that connect the capacitors to the board. Then make sure the bolts on the output
connectors are tight, too.
Then settle back and use it for another 25 years.
On 4/16/2013 8:27 AM, Bill wrote:
My RS-35A has
Bill -
Older Astron power supplies can continue to give good service, there is
no reason to replace it unlessit seems to have a problem.
One of the things that does go bad in these supplies, particularly ones
of this vintage, is that the main filter capacitor loses its
microfarads(dries
I have a question on adjusting the voltage a bit higher for use with the
K3. I was thinking of 14.5 V, as others have mentioned, and adjusting
voltage on receive.
I have an accurate voltmeter.
Should I set the voltage with the voltmeter measuring at the DC input to
the K3 (at the power pole
garyk...@wi.rr.com
Subject: Re: [Elecraft] K3 power supply recommendations
To: elecraft@mailman.qth.net
Date: Tuesday, April 16, 2013, 9:56 PM
I have a question on adjusting the voltage a bit higher for use with the
K3. I was thinking of 14.5 V, as others have mentioned, and adjusting
voltage
KN5L sez 'My plan is to try a Samlex 1223 or 1235 next. Reports are that the
Samlex products have a quieter fan.'
Before you do, check on warranty repair policy. I bought a Samlex 1223 for my
K3 from HRO. Samlex Corp was in BC, Canada, I believe.
It took a month to get my unit replaced when
Thank you for the heads up on the warranty problems.
I have decided to go again with a 35 amp analog Astron. Thanks to all
that responded. Nice to hear what other are using and how it works out.
Never had a problem running everything from a single battery (been doing
it for many years) -
On 3/25/2012 10:46 AM, Bill Miller wrote:
What is recommended for a K-3 power supply? (New owner)
Any decent supply that regulates to about 13VDC will work well provided
that it is not electrically noisy. I've used Astron linear supplies,
and a compact PowerWerx unit rated for 20A. The latter
...@mailman.qth.net] On Behalf Of Jim Brown
Sent: Tuesday, 27 March 2012 3:19 AM
To: elecraft@mailman.qth.net
Subject: [Elecraft] K3 Power Supply
On 3/25/2012 10:46 AM, Bill Miller wrote:
What is recommended for a K-3 power supply? (New owner)
Any decent supply that regulates to about 13VDC will work well
Thanks, Chip -
Looks like just what the doc ordered.
73, Mike NF4L
On 1/1/2012 11:12 PM, Chip Stratton wrote:
Take a look at the TDK Lambda switch mode power supplies. The LS50-15 that
I have is pretty quiet, with output voltage adjustable from 13.5v to 16.5v,
about $20 from Newark
Take a look at the TDK Lambda switch mode power supplies. The LS50-15 that
I have is pretty quiet, with output voltage adjustable from 13.5v to 16.5v,
about $20 from Newark Electronics. The LS35-12 is a bit cheaper if you
really only need 12 volts.
Understood. The point is that I ONLY want to talk to the RS-232 interface. No
xmit or
recv is needed. I'll be in a Mac programming seminar at Big Nerd Ranch. Really.
I have one of those RS supplies in the shack, powering 4 receivers that listen
for
railroad traffic and send it to an
On 12/29/2011 4:15 AM, Mike wrote:
Thanks Jim. I'll check Rose's site.
Rose does custom things. The bags she made for us were custom, but the
link together was something she had done for W0YK, and the pouches for
computer and PSU she had done for someone else. .Rose is quite
responsive via
Thanks Jim. I'll check Rose's site.
73, Mike NF4L
On 12/28/2011 8:40 PM, Jim Brown wrote:
On 12/28/2011 5:30 PM, Mike wrote:
I'm going to try and find a case that will hold the K3, a small power
supply, and my
flaptop computer.
Rose Kopp made one for me that fits this description -- in
Looks like a Radio Shack 22-507 PS will meet my needs @ 3A. Unless someone has
a
better/cheaper solution. I have 4 20 amp (or better supplies), and don't need
another
of those . .
73, Mike NF4L
On 12/28/2011 8:09 AM, Mike wrote:
I need to take my K3 to class. I'll need just enough oomph to
On 12/29/2011 3:19 PM, Mike wrote:
Looks like a Radio Shack 22-507 PS will meet my needs @ 3A. Unless someone
has a
better/cheaper solution. I have 4 20 amp (or better supplies), and don't need
another
of those
Current rating isn't the only spec for a power supply -- RF noise is a
VERY
I need to take my K3 to class. I'll need just enough oomph to talk to the
serial
port. What would be the minimum rating for a PS? Any suggestions for a small
packable
one?
Would a couple of layers of bubble wrap be sufficient for packing the rig in
checked
buggage?
73, Mike NF4L
7:09 AM
Subject: [Elecraft] [K3] Power supply rating
I need to take my K3 to class. I'll need just enough oomph to talk to the
serial
port. What would be the minimum rating for a PS? Any suggestions for a small
packable
one?
Would a couple of layers of bubble wrap be sufficient for packing
...@nf4l.com
To: Elecraft List Elecraft@mailman.qth.net
Sent: Wednesday, December 28, 2011 7:09 AM
Subject: [Elecraft] [K3] Power supply rating
I need to take my K3 to class. I'll need just enough oomph to talk
to the serial
port. What would be the minimum rating for a PS? Any suggestions
...@yahoo.com wrote:
From: WILLIS COOKE wrco...@yahoo.com
Subject: Re: [Elecraft] [K3] Power supply rating
To: n...@nf4l.com n...@nf4l.com, Elecraft List Elecraft@mailman.qth.net
Date: Wednesday, December 28, 2011, 11:11 AM
My K3 with two receivers draws about 2 amps on receive. It drew a bit over 1
amp
A loaded K3 on receive should be under 1.5 A even with all guns blazing...
A year or so ago, I decided to ckeck the current drawn by my loaded K3.
To my surprise and confusion, the K3 appeared to be drawing 2.7A with the
power switch OFF!!!
Various opinions expressed by this list notwithstanding,
AM
Subject: [Elecraft] [K3] Power supply rating
I need to take my K3 to class. I'll need just enough oomph to talk to the
serial
port. What would be the minimum rating for a PS? Any suggestions for a
small
packable
one?
Would a couple of layers of bubble wrap
*Sent:* Wednesday, December 28, 2011 7:09 AM
*Subject:* [Elecraft] [K3] Power supply rating
I need to take my K3 to class. I'll need just enough oomph to talk to the
serial
port. What would be the minimum rating for a PS? Any suggestions for a small
packable
one?
Would a couple of layers
On 12/28/2011 5:30 PM, Mike wrote:
I'm going to try and find a case that will hold the K3, a small power supply,
and my
flaptop computer.
Rose Kopp made one for me that fits this description -- in fact, she
made two, the second for my running buddy, N3ZZ, and they're configured
to lash
Here's a thought -- why not fill out the K-line with an S-line-like
speaker with room for a power supply, as Collins did.
Of course, the K3 really wants to have two speakers -- especially if a sub
receiver is installed. So a power supply could go in one (possibly sized for
someone else's, if
Kind of hard to beat an Astron 35 for power and a pair of Behringer MS40
speakers for audio. Sure, they don't match - but they work well.
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help:
In response to many questions about what I chose, the answer is I
bought two different supplies, with different intended uses.
One was the Gamma Research unit, nice and small, but low capacity (okay
on SSB and CW, too low for digital modes unless you run 10 watts or so
due to its power duty
I am looking for a switching supply that is low RF noise, light
weight, and hopefully small enough maybe to fit in the side pockets of
the K3 carrying case that Rose Kopp makes. I believe something like
2x4.5x8 or smaller would fit. And if it had Anderson Power Pole
connectors, so much the
The new PowerWerx SS-30DV is about as small as practical and has Power
Pole connectors. Very quiet as well. Even smaller than the Samlex 1223.
Doug -- K0DXV
On 9/29/2010 5:17 PM, David F. Reed wrote:
I am looking for a switching supply that is low RF noise, light
weight, and hopefully
Dave,
The Powerwerx SS-30 is 5 x 2.5 x 6.75 inches (including the connectors on the
rear). It has two Powerpole connector pairs on the front and will handle 25 W
continuous/30 W intermittent. It might be a little big for the side pocket of
your bag based on the dimensions you provided but I
I only have the K3/10 but I use the very tiny Gamma HPS-1A
jim ab3cv
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post: mailto:Elecraft@mailman.qth.net
This list
Thanks all, I have two good candidates now; I appreciate the help.
73 de Dave, W5SV
__
Elecraft mailing list
Home: http://mailman.qth.net/mailman/listinfo/elecraft
Help: http://mailman.qth.net/mmfaq.htm
Post:
Hello Phil,
On Sun, 23 May 2010, elecraft-requ...@mailman.qth.net wrote:
From: Phil LaMarche plama...@verizon.net
Subject: [Elecraft] K3 Power Supply
I have a 35 and 70 amp Astron PS for home use. I want to buy a supply that
is light and nice for taking it on vacations etc. Any
...@verizon.net
Subject: [Elecraft] K3 Power Supply
I have a 35 and 70 amp Astron PS for home use. I want to buy a supply that
is light and nice for taking it on vacations etc. Any recommendations?
Phil
For several years I have been using an MFJ-4125 (6x6x2) with several
different rigs when
I have a 35 and 70 amp Astron PS for home use. I want to buy a supply that
is light and nice for taking it on vacations etc. Any recommendations?
Phil
Philip LaMarche
LaMarche Enterprises, Inc
p...@lamarcheenterprises.com
www.LaMarcheEnterprises.com http://www.lamarcheenterprises.com/
I've been using a MFJ 4125P since October, 2009 with no problems. It
does have some fan noise that I attenuate by putting it behind my
computer monitor plus I wear headphones most of the time.
Dunc, W5DC
__
Elecraft mailing list
Here is what I use. I don't know of any smaller.
http://www.gammaresearch.net/hps-1a.html
73 de W6BK
On May 22, 2010, at 9:47 AM, Phil LaMarche wrote:
I have a 35 and 70 amp Astron PS for home use. I want to buy a supply that
is light and nice for taking it on vacations etc. Any
After some research I settled on a Samlex SEC 1235M, a 30-ampere metered
supply for $139, $20 less without meters. It seems quite solid and, so
far as I can tell so far, RF quiet. There's a good thorough review of
it on the Internet - I've lost the URL but you can Google easily.
73, Pete
I also choose the Samlex 1235M. The guys at Gigaparts told me that,
unlike other supplies they sell, they had never had a Samlex brought
back. It has served me well.
73,
Randy, KS4L
On May 22, 2010, at 1:36 PM, Pete Smith n...@contesting.com wrote:
After some research I settled on a Samlex
On 5/22/2010 6:47 PM, Phil LaMarche wrote:
I have a 35 and 70 amp Astron PS for home use. I want to buy a supply that
is light and nice for taking it on vacations etc. Any recommendations?
Phil
Philip LaMarche
LaMarche Enterprises, Inc
p...@lamarcheenterprises.com
I have a 35 and 70 amp Astron PS for home use. I want to buy a supply that
is light and nice for taking it on vacations etc. Any recommendations?
The Astron SS-30M is light and works FB.
Just take the top cover off and tighten all the PC board mounting screws.
Paul N4LCD
: [Elecraft] K3 Power supply
Sorry but this is totally wrong. In this case your FT-1000D
was either broken or not aligned properly.
If you still have it align it per the service manual and
you will see something totally different.
73 Jim SM2EKM
--
Erik N Basilier
- Original Message -
From: Jan Erik Holm sm2...@telia.com
Cc: elecraft@mailman.qth.net
Sent: Monday, May 11, 2009 8:25 PM
Subject: Re: [Elecraft] K3 Power supply
Sorry but this is totally wrong. In this case your FT-1000D
was either broken or not aligned properly.
If you still have
11, 2009 8:25 PM
Subject: Re: [Elecraft] K3 Power supply
Sorry but this is totally wrong. In this case your FT-1000D
was either broken or not aligned properly.
If you still have it align it per the service manual and
you will see something totally different.
73 Jim SM2EKM
The past couple of days I have noticed the noise level on the K3 has
gone up a couple of S units and on 20 meters and there were tunable
hash signals.I started to try and find the problem and using another
receiver I find the Astron SS-30 is generating all sorts of noise.
I have used this
not be any better than the one removed. So I buy
from Allied or one of the other
on line vendors, wait a week and save the gas.
Willis 'Cookie' Cooke
K5EWJ
--- On Mon, 5/11/09, Merv Schweigert k...@flex.com wrote:
From: Merv Schweigert k...@flex.com
Subject: [Elecraft] K3 Power supply
- Original Message -
From: Merv Schweigert k...@flex.com
I started to try and find the problem and using another
receiver I find the Astron SS-30 is generating all sorts of noise.
I have used this supply for some time and have not noticed the noise
before.
Merv,
For weight
Wonder what supplies are being used with the K3?
Merv,
For the shack, I gave up on switch-mode power supplies since I could not
find one that produced a low noise floor on all bands. For years, I was
unknowingly putting up with a high-level noise floor until I purchased the
SDR-IQ and began
Merv, if you're suddenly getting hash from two formerly-clean switchers, I'd
suspect something else, such as a bad mains ground on the circuit feeding
the supplies or a change in the rig's grounding system that is now
introducing some sort of a ground loop return.
Have you made any changes to
I find the Astron SS-30 is generating all sorts of noise.
For the past year, I have used an Astron RS-35A (linear = heavy) with
excellent electrical results. Just yesterday, I removed the power
transformer mounting screws and added rubber equipment feet as isolators and
remounted the
Milt, N5IA wrote:
- Original Message - From: Merv Schweigert k...@flex.com
I started to try and find the problem and using another
receiver I find the Astron SS-30 is generating all sorts of noise.
I have used this supply for some time and have not noticed the noise
before.
Merv,
Message -
From: Merv Schweigert k...@flex.com
To: Milt, N5IA n...@zia-connection.com
Cc: elecraft@mailman.qth.net
Sent: Monday, May 11, 2009 4:14 PM
Subject: Re: [Elecraft] K3 Power supply
Milt, N5IA wrote:
- Original Message - From: Merv Schweigert k...@flex.com
I started to try
The past couple of days I have noticed the noise level on the K3 has
gone up a couple of S units and on 20 meters and there were tunable
hash signals.I started to try and find the problem and using another
receiver I find the Astron SS-30 is generating all sorts of noise.
Have you checked
Sorry but this is totally wrong. In this case your FT-1000D
was either broken or not aligned properly.
If you still have it align it per the service manual and
you will see something totally different.
73 Jim SM2EKM
--
Erik N Basilier wrote:
Merv,
My experience
changed the AGC
parameters sometime during the long production run.
73,
Erik K7TV
- Original Message -
From: Jan Erik Holm sm2...@telia.com
Cc: elecraft@mailman.qth.net
Sent: Monday, May 11, 2009 8:25 PM
Subject: Re: [Elecraft] K3 Power supply
Sorry but this is totally wrong. In this case
Gary
I was sold on the idea of switched mode power supplies and mainly used
one of the later model Samlex 1223 supplies with the factory fitted
extra EMC components. You've guessed, it was fine for a while then I
noticed a wandering burble on 80m and it was radiated from the PSU.
Maybe the
1 - 100 of 164 matches
Mail list logo
