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Power Supply For K3?

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Bruce W1UJR

Power Supply For K3?

Has anyone settled on a nice power supply for the K3?

Something that:
- Is quiet from a RF standpoint, switching or non-switching.
- Looks cosmetically attractive to sit on the desk next to the K3
- Has adequate power/current abilities.

Thinking that something like the old Collins S Line power supply speaker
would be an ideal addition to the Elecraft "K" line.

In the meantime, I'd like to hear what folks have found that works, prefer
not to reinvent the wheel.

Thanks!

Cordially,
Bruce J. Howes W1UJR
www.W1UJR.net

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Pete Smith N4ZR

Re: Power Supply For K3?

I am very happy with my SEC 1235M. The 30-amp capacity gives me lots of
headroom. See the review by AD5X on his web site
<http://www.ad5x.com/images/Presentations/SEC1235M%20Review.pdf>.

73, Pete N4ZR

The World Contest Station Database, updated daily at www.conteststations.com
The Reverse Beacon Network at http://reversebeacon.net, blog at reversebeacon.blogspot.com,
spots at telnet.reversebeacon.net, port 7000

On 5/11/2011 12:22 PM, Bruce W1UJR wrote:

> Has anyone settled on a nice power supply for the K3?
>
> Something that:
> - Is quiet from a RF standpoint, switching or non-switching.
> - Looks cosmetically attractive to sit on the desk next to the K3
> - Has adequate power/current abilities.
>
> Thinking that something like the old Collins S Line power supply speaker
> would be an ideal addition to the Elecraft "K" line.
>
> In the meantime, I'd like to hear what folks have found that works, prefer
> not to reinvent the wheel.
>
> Thanks!
>
>
> Cordially,
> Bruce J. Howes W1UJR
> www.W1UJR.net
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
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>
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>
>

Matt Zilmer

Re: Power Supply For K3?

In reply to this post by Bruce W1UJR

Astron RS25M.
matt W6NIA

On Wed, 11 May 2011 12:22:56 -0400, you wrote:

>Has anyone settled on a nice power supply for the K3?

>Cordially,
>Bruce J. Howes W1UJR
>www.W1UJR.net
>
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
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Phil LaMarche-2

Re: Power Supply For K3?

Twenty years ago I purchased a Astron RS-70M. It powers my entire station
with lots of head room. Other than power outages, it's been turned on 24/7
with no problems what so ever.

Philip LaMarche

LaMarche Enterprises, Inc
[hidden email]
www.LaMarcheEnterprises.com

727-944-3226
727-937-8834 Fax
727-510-5038 Cell

www.w9dvm.com

K3 #1605
KPA 500 #029

CCA 98-00827
CRA 1701
W9DVM

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Matt Zilmer
Sent: Wednesday, May 11, 2011 12:47 PM
To: Bruce W1UJR
Cc: Elecraft Reflector
Subject: Re: [Elecraft] Power Supply For K3?

Astron RS25M.
matt W6NIA

On Wed, 11 May 2011 12:22:56 -0400, you wrote:

>Has anyone settled on a nice power supply for the K3?

>Cordially,
>Bruce J. Howes W1UJR
>www.W1UJR.net
>
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:[hidden email]
>
>This list hosted by: http://www.qsl.net Please help support this email
>list: http://www.qsl.net/donate.html

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Guy, K2AV

Re: Power Supply For K3?

In reply to this post by Matt Zilmer

Wish there was a way for the KPA500 to provide 12V for the K3. That
would be smokin'.

Another winding on the transformer? DC to DC downconverter from pulse
width gate to a capacitor?

73, Guy.

On Wed, May 11, 2011 at 12:46 PM, Matt Zilmer <[hidden email]> wrote:

> Astron RS25M.
> matt W6NIA
>
> On Wed, 11 May 2011 12:22:56 -0400, you wrote:
>
>>Has anyone settled on a nice power supply for the K3?
>
>>Cordially,
>>Bruce J. Howes W1UJR
>>www.W1UJR.net
>>
>>______________________________________________________________
>>Elecraft mailing list
>>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>Help: http://mailman.qth.net/mmfaq.htm
>>Post: mailto:[hidden email]
>>
>>This list hosted by: http://www.qsl.net
>>Please help support this email list: http://www.qsl.net/donate.html
> ______________________________________________________________
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Ken G Kopp

Power Supply For K3?

In reply to this post by Phil LaMarche-2

I have had a 35A Astron running under my bench for several
decades. It's never been off, other than for power outages.

There's a RIGrunner fused distribution box on the wall behind
the equipment that feeds everything that's 12VDC in the station.

Works for me.

73! Ken Kopp - K0PP
[hidden email]
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Matt Zilmer

Re: Power Supply For K3?

In reply to this post by Phil LaMarche-2

We're of similar mind. I have a rack-mount RS-50M, RS-35 and RS-25,
and several of the 11 Amp switchers. Astron makes excellent products,
imho.

Most of my hamming and MARSing is done on solar power, but everyone
needs a back up.

73,
matt W6NIA

On Wed, 11 May 2011 12:53:13 -0400, you wrote:

>Twenty years ago I purchased a Astron RS-70M. It powers my entire station
>with lots of head room. Other than power outages, it's been turned on 24/7
>with no problems what so ever.
>
>Philip LaMarche
>
>LaMarche Enterprises, Inc
>[hidden email]
>www.LaMarcheEnterprises.com
>
>727-944-3226
>727-937-8834 Fax
>727-510-5038 Cell
>
>www.w9dvm.com
>
>K3 #1605
>KPA 500 #029
>
>CCA 98-00827
>CRA 1701
>W9DVM
>
>
>
>-----Original Message-----
>From: [hidden email]
>[mailto:[hidden email]] On Behalf Of Matt Zilmer
>Sent: Wednesday, May 11, 2011 12:47 PM
>To: Bruce W1UJR
>Cc: Elecraft Reflector
>Subject: Re: [Elecraft] Power Supply For K3?
>
>Astron RS25M.
>matt W6NIA
>
>On Wed, 11 May 2011 12:22:56 -0400, you wrote:
>
>>Has anyone settled on a nice power supply for the K3?
>
>>Cordially,
>>Bruce J. Howes W1UJR
>>www.W1UJR.net
>>
>>______________________________________________________________
>>Elecraft mailing list
>>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>>Help: http://mailman.qth.net/mmfaq.htm
>>Post: mailto:[hidden email]
>>
>>This list hosted by: http://www.qsl.net Please help support this email
>>list: http://www.qsl.net/donate.html
>______________________________________________________________
>Elecraft mailing list
>Home: http://mailman.qth.net/mailman/listinfo/elecraft
>Help: http://mailman.qth.net/mmfaq.htm
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>
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Jim Brown-10

Re: Power Supply For K3?

In the old days, I used an Astron linear supply to run my 12V radios.
Soon after I got back on the air in 2003 after a long period of
inactivity, I adopted the practice of using a small regulated supply
(about 10A) to float-charge a big 12V deep-cycle battery (about 110AH)
that I bought at Costco for about $70. The supply regulates to 13.8V,
which never overcharges the battery, so it lasts a long time and serves
as a poor man's UPS. The radio runs very well, and the battery will
keep it running through a power failure of moderate length. I run
several accessories, a VHF rig, and the dial lights for several antenna
tuners from this rig, and it's big enough to keep up with heavy contest
operation as long as I have AC power. Just last fall, I replaced the
battery that I bought in 2006 when I moved to CA. This time it cost $75.

This sort of setup would work just fine with one of the el-crappo
computer supplies that have been described here. If it's a switching
supply, be prepared to do some suppression. The PSU I use is a 10A
switcher that I bought for $10 at a Chicago hamfest around 2004. I added
caps across the DC line and ferrite chokes on both the DC line and the
AC cable.

73, Jim Brown K9YC
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Dick Dievendorff

Re: Power Supply For K3?

In reply to this post by Bruce W1UJR

Some equipment needs to be in view and some can be on the floor...

I use an Astron RS-70A on the floor, turned on all the time except when I
leave for a vacation, and a Rig Runner 8012 distribution panel that supplies
12 individually fused Anderson Power Pole connectors.

This is for two K3s and assorted 12V station equipment.

When I had one 12V 100-watt radio and assorted station accessories, I used
an Astron RS-35A.

For travel I have a Gamma Research HPS-1a, which it is very attractively
sized and supplies enough for casual use.

Dick, K6KR

-----Original Message-----
From: [hidden email]
[mailto:[hidden email]] On Behalf Of Bruce W1UJR
Sent: Wednesday, May 11, 2011 9:23 AM
To: Elecraft Reflector
Subject: [Elecraft] Power Supply For K3?

Has anyone settled on a nice power supply for the K3?

Something that:
- Is quiet from a RF standpoint, switching or non-switching.
- Looks cosmetically attractive to sit on the desk next to the K3
- Has adequate power/current abilities.

Thinking that something like the old Collins S Line power supply speaker
would be an ideal addition to the Elecraft "K" line.

In the meantime, I'd like to hear what folks have found that works, prefer
not to reinvent the wheel.

Thanks!

Cordially,
Bruce J. Howes W1UJR
www.W1UJR.net

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Buck - k4ia

Re: Power Supply For K3?

In reply to this post by Ken G Kopp

35A Astron linear running for 24/7 10 years at home with no issues.

Samlex 1223 switcher at Field Day for 24 hours of constant CW in
Virginia-summer heat with no issues. There is no "head room" in this
supply to run any other accessories so it is a bare minimum for
capacity. I do not hear any RFI with it but I only operate 40M. I
understand Samlex supplies are quiet but, as others have pointed out,
there is bound to be noise somewhere.

Buck
k4ia

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Eugene Balinski

Re: Power Supply For K3?

In reply to this post by Ken G Kopp

Astron RS-35M 20 +years

73
Gene K1NR

K2 6kxx

On Wed, 11 May 2011 11:01:10 -0600
"Ken - K0PP" <[hidden email]> wrote:

>
> I have had a 35A Astron running under my bench for
> several
> decades. It's never been off, other than for power
> outages.
>
> There's a RIGrunner fused distribution box on the wall
> behind
> the equipment that feeds everything that's 12VDC in the
> station.
>
> Works for me.
>
> 73! Ken Kopp - K0PP
> [hidden email]
>

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Phil Kane-2

Re: Power Supply For K3?

In reply to this post by Dick Dievendorff

On 5/11/2011 12:24 PM, Dick Dievendorff wrote:

> Some equipment needs to be in view and some can be on the
> floor...

On the floor I have a 60A Precision Dynamics charger/supply
floating two Trojan 27AGM batteries (~200 AH) installed
outdoors and connected with 4 AWG cables, a 1500 VA UPS for the
computer equipment, and a smaller UPS for the telephone system.
The PD charger/supply comes from the world of RV power, and
picks up the full load even if the batteries fail.

On the power panel above the operating desk, there's a
low-voltage cut-off relay and two "battery boosters" each
feeding a bank of 8-12V DC circuit breakers rated for marine
use. Digital metering is provided for battery charge/discharge
current, bus voltage, and output voltage of each "battery
booster". Internal wiring on the power panel is 8 AWG with all
connections properly crimped per industry standards. This
custom panel was designed by myself with the assistance of our
firm's communication site DC power distribution specialist, a
nationally recognized expert in that field.

In the operating console are my K2/100 plus an assorted
collection of VHF/UHF transceivers, HF receivers, VHF/UHF
scanners, TNCs, and assorted accessories. Works quite well.

-- 73 de K2ASP - Phil Kane
Elecraft K2/100 s/n 5402

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Phil Kane-2

Re: Power Supply For K3?

In reply to this post by Dick Dievendorff

On 5/11/2011 12:24 PM, Dick Dievendorff wrote:

> Some equipment needs to be in view and some can be on the
> floor...

On the floor I have a 60A Precision Dynamics charger/supply
floating two Trojan 27AGM batteries (~80 AH each) installed
outdoors and connected with 4 AWG cables, a 1500 VA UPS for the
computer equipment, and a smaller UPS for the telephone system.
The PD charger/supply comes from the world of RV power, and
picks up the full load even if the batteries fail.

On the power panel above the operating desk, there's a
low-voltage cut-off relay and two "battery boosters" each
feeding a bank of 8-12V DC circuit breakers rated for marine
use. Digital metering is provided for battery charge/discharge
current, bus voltage, and output voltage of each "battery
booster". Internal wiring on the power panel is 8 AWG with all
connections properly crimped per industry standards. This
custom panel was designed by myself with the assistance of our
firm's communication site DC power distribution specialist, a
nationally recognized expert in that field.

In the operating console are my K2/100 plus an assorted
collection of VHF/UHF transceivers, HF receivers, VHF/UHF
scanners, TNCs, and assorted accessories.

With the exception of the K2/100, all equipment is powered up
24/7 and the setup runs well with no overheating. I have
never detected any RF hash from it.

-- 73 de K2ASP - Phil Kane
Elecraft K2/100 s/n 5402

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Gary Gregory

Re: Power Supply For K3?

PowerWerx SS-30DV...going strong, switcher, is hammered everyday for a
minimum of 12 hours and also runs the 2M Poverty Pack Radio from
Yucksu...:-)

YMMV of course

Gary

On 12 May 2011 12:17, Phil Kane <[hidden email]> wrote:

> On 5/11/2011 12:24 PM, Dick Dievendorff wrote:
>
> > Some equipment needs to be in view and some can be on the
> > floor...
>
> On the floor I have a 60A Precision Dynamics charger/supply
> floating two Trojan 27AGM batteries (~80 AH each) installed
> outdoors and connected with 4 AWG cables, a 1500 VA UPS for the
> computer equipment, and a smaller UPS for the telephone system.
> The PD charger/supply comes from the world of RV power, and
> picks up the full load even if the batteries fail.
>
> On the power panel above the operating desk, there's a
> low-voltage cut-off relay and two "battery boosters" each
> feeding a bank of 8-12V DC circuit breakers rated for marine
> use. Digital metering is provided for battery charge/discharge
> current, bus voltage, and output voltage of each "battery
> booster". Internal wiring on the power panel is 8 AWG with all
> connections properly crimped per industry standards. This
> custom panel was designed by myself with the assistance of our
> firm's communication site DC power distribution specialist, a
> nationally recognized expert in that field.
>
> In the operating console are my K2/100 plus an assorted
> collection of VHF/UHF transceivers, HF receivers, VHF/UHF
> scanners, TNCs, and assorted accessories.
>
> With the exception of the K2/100, all equipment is powered up
> 24/7 and the setup runs well with no overheating. I have
> never detected any RF hash from it.
>
> -- 73 de K2ASP - Phil Kane
> Elecraft K2/100 s/n 5402
>
> ______________________________________________________________
> Elecraft mailing list
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>
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>

--

VK4FD - Motorhome Mobile
Elecraft Equipment
K3 #679, KPA-500 #018
Living the dream!!!
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w0mu

Re: Power Supply For K3?

In reply to this post by Ken G Kopp

Power Werks SS-30 DV.

Runs cool, quiet, small and light. I have not found any noise on the K3.
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AD4C2009

Re: Power Supply For K3?

In reply to this post by Eugene Balinski

I have been using for about 7 years 24/7 never turned off the Alinco linear 35A dual meter PS to feed all radios I have owned on those years,now for more than 2 years is been feeding my K3 and recently been used as well to feed the Flex-5000A.very quite,reliable,free of noise unit.For portable use on field days and dxpeditions I have been using the Radio Shack switching PS of 25A they have been selling for few years but that unfortunately now is discontinued.

AD4C

"If freedom means something,it is the right to tell others what they don't want to hear" –George Orwell

From: Eugene Balinski <[hidden email]>
To: [hidden email]
Sent: Wednesday, May 11, 2011 3:50 PM
Subject: Re: [Elecraft] Power Supply For K3?

Astron RS-35M 20 +years

73
Gene K1NR

K2 6kxx

On Wed, 11 May 2011 11:01:10 -0600
"Ken - K0PP" <[hidden email]> wrote: