[Elecraft] very small 20A switching PS
Hello Lewis, Please keep the group infomed about your findings. PSU at this package is usually much cheaper. However, the problem is always the RFI especially below 40m. Tune the rig to the 40, 80 and 160m, you will notice noise from the PSU if there is RFI. Switching power supply itself is not an evil but well shielded and designed unit without RFI (or at least not noticeable) could be a bit costy. 73 Johnny VR2XMC 寄件人︰ Lewis Phelps 收件人︰ "elecraft@mailman.qth.net List" 傳送日期︰ 2014年09月25日 (週四) 8:01 AM 主題︰ Re: [Elecraft] very small 20A switching PS In the “small power supply” department, I recently grabbed a surplus unit on sale at all electronics.com. It measures a scant 1.5 x 3 x 12 (if you remove a handle) and puts out 45 amps at 12VDC plus 3.1 amps at 3.3 VDC. And the cost is only $24. Downside: probably produces too much RF noise to be useful. I haven’t had a chance to test it yet, but it’s rated as ENC 55022 Class A, which basically means it’s not rated for residential use. whether it will work OK in a ham radio application remains to be seen. I’ll report more when I know. It’s designed to run rack mounted equipment. It also requires some ingenuity in connecting its output to the station, since it uses an output connector that is …ummm… unusual in the ham radio environment. But if it works, it offers great bang for the buck. see: http://www.allelectronics.com/make-a-store/item/ps-2545/12-vdc-45a-3.3-vdc-3a-power-supply/1.html Lew N6LEW On Sep 22, 2014, at 4:27 AM, Ignacy wrote: > HPS1-A required reducing power in my K3 to about 60W. It works well with > IC-7000 because this rig folds power with lower voltage. For me, HPS > advantages are light weight and automatic 110/220C switching. > > It failed once under light service. > > Ignacy, NO9E __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
In the “small power supply” department, I recently grabbed a surplus unit on sale at all electronics.com. It measures a scant 1.5 x 3 x 12 (if you remove a handle) and puts out 45 amps at 12VDC plus 3.1 amps at 3.3 VDC. And the cost is only $24. Downside: probably produces too much RF noise to be useful. I haven’t had a chance to test it yet, but it’s rated as ENC 55022 Class A, which basically means it’s not rated for residential use. whether it will work OK in a ham radio application remains to be seen. I’ll report more when I know. It’s designed to run rack mounted equipment. It also requires some ingenuity in connecting its output to the station, since it uses an output connector that is …ummm… unusual in the ham radio environment. But if it works, it offers great bang for the buck. see: http://www.allelectronics.com/make-a-store/item/ps-2545/12-vdc-45a-3.3-vdc-3a-power-supply/1.html Lew N6LEW On Sep 22, 2014, at 4:27 AM, Ignacy wrote: > HPS1-A required reducing power in my K3 to about 60W. It works well with > IC-7000 because this rig folds power with lower voltage. For me, HPS > advantages are light weight and automatic 110/220C switching. > > It failed once under light service. > > Ignacy, NO9E > > > > -- > View this message in context: > http://elecraft.365791.n2.nabble.com/very-small-20A-switching-PS-tp7593251p7593292.html > Sent from the Elecraft mailing list archive at Nabble.com. > __ > 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 hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to l...@n6lew.us > __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
HPS1-A required reducing power in my K3 to about 60W. It works well with IC-7000 because this rig folds power with lower voltage. For me, HPS advantages are light weight and automatic 110/220C switching. It failed once under light service. Ignacy, NO9E -- View this message in context: http://elecraft.365791.n2.nabble.com/very-small-20A-switching-PS-tp7593251p7593292.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
It's a shame they can't put powerpoles on the *BACK* of those supplies - particularly the back of the "metered" version. 73, ... Joe, W4TV On 2014-09-21 10:48 AM, Mike Furrey wrote: Go with the powerwerx unit. I have, it is a very good, compact power supply. http://www.powerwerx.com/power-supplies/?gclid=CMD4tdLG8sACFc1i7AodNwMAqw 73, Mike WA5POK On Sunday, September 21, 2014 10:37 AM, Jeff Herr wrote: this one is smaller. http://www.gammaresearch.net/hps-1a.html than this one... http://www.powerwerx.com/power-supplies/variable-digital-meters-30-amp-deskt op-power-supply.html but the power werx unit is electrically quiet, costs less, has accurate I & E meters, and is variable. -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Nick Garner Sent: Sunday, September 21, 2014 03:59 AM To: howar...@lehigh.edu Cc: Elecraft Reflector Subject: Re: [Elecraft] very small 20A switching PS I have used the Gamma Research HPS-1a for several years and love it. It fits easily in my K3 pelican case. . Output is 22A at 25 percent duty. http://www.gammaresearch.net/hps-1a.html Nick N3WG On Sep 21, 2014 7:51 PM, "Howard Sherer" wrote: A few years ago there was some discussion here about a very small 12 v 20A switching PSU with very low noise that was designed for radio use. I am now interested in one for use with my KX3 & KXPA. Can someone point me in the right direction. Howard AE3T __ 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 hosted by: http://www.qsl.net/Please help support this email list: http://www.qsl.net/donate.htmlMessage delivered to nwgar...@gmail.com __ 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 hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.htmlMessage delivered to her...@comcast.net __ 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 hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html Message delivered to mikefur...@att.net __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to li...@subich.com __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
Over the years QST Product Reviews have tested switching power supplies. If you're a member the specific reviews can be found in the Product Review archives, Howard. They include info on noise spectrum -- one of the main features of interest. I use an old Astron switcher with good success with my K2/100 set-up. My K3/100 runs from a much heavier Astron 35 amp transformer-type supply -- just because I have it :-) 73, Phil W7OX On 9/21/14, 3:50 AM, Howard Sherer wrote: A few years ago there was some discussion here about a very small 12 v 20A switching PSU with very low noise that was designed for radio use. I am now interested in one for use with my KX3 & KXPA. Can someone point me in the right direction. Howard AE3T __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
Go with the powerwerx unit. I have, it is a very good, compact power supply. http://www.powerwerx.com/power-supplies/?gclid=CMD4tdLG8sACFc1i7AodNwMAqw 73, Mike WA5POK On Sunday, September 21, 2014 10:37 AM, Jeff Herr wrote: this one is smaller. http://www.gammaresearch.net/hps-1a.html than this one... http://www.powerwerx.com/power-supplies/variable-digital-meters-30-amp-deskt op-power-supply.html but the power werx unit is electrically quiet, costs less, has accurate I & E meters, and is variable. -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Nick Garner Sent: Sunday, September 21, 2014 03:59 AM To: howar...@lehigh.edu Cc: Elecraft Reflector Subject: Re: [Elecraft] very small 20A switching PS I have used the Gamma Research HPS-1a for several years and love it. It fits easily in my K3 pelican case. . Output is 22A at 25 percent duty. http://www.gammaresearch.net/hps-1a.html Nick N3WG On Sep 21, 2014 7:51 PM, "Howard Sherer" wrote: > A few years ago there was some discussion here about a very small 12 v > 20A switching PSU with very low noise that was designed for radio use. > I am now interested in one for use with my KX3 & KXPA. Can someone > point me in the right direction. > > Howard AE3T > > __ > 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 hosted by: http://www.qsl.net/Please help support this email > list: http://www.qsl.net/donate.htmlMessage delivered to > nwgar...@gmail.com > __ 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 hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.htmlMessage delivered to her...@comcast.net __ 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 hosted by: http://www.qsl.net/ Please help support this email list: http://www.qsl.net/donate.html Message delivered to mikefur...@att.net __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
this one is smaller. http://www.gammaresearch.net/hps-1a.html than this one... http://www.powerwerx.com/power-supplies/variable-digital-meters-30-amp-deskt op-power-supply.html but the power werx unit is electrically quiet, costs less, has accurate I & E meters, and is variable. -Original Message- From: Elecraft [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of Nick Garner Sent: Sunday, September 21, 2014 03:59 AM To: howar...@lehigh.edu Cc: Elecraft Reflector Subject: Re: [Elecraft] very small 20A switching PS I have used the Gamma Research HPS-1a for several years and love it. It fits easily in my K3 pelican case. . Output is 22A at 25 percent duty. http://www.gammaresearch.net/hps-1a.html Nick N3WG On Sep 21, 2014 7:51 PM, "Howard Sherer" wrote: > A few years ago there was some discussion here about a very small 12 v > 20A switching PSU with very low noise that was designed for radio use. > I am now interested in one for use with my KX3 & KXPA. Can someone > point me in the right direction. > > Howard AE3T > > __ > 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 hosted by: http://www.qsl.net Please help support this email > list: http://www.qsl.net/donate.html Message delivered to > nwgar...@gmail.com > __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to her...@comcast.net __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
I also had very good results with the Gamma with my K3. In CW mode, it will support an output power of about 75W. More on SSB I would guess. 73 Craig AC0DS __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
It's the Gamma Research HPS-1a, had one for use in an RV worked great with my K3 and KX3 73 Tex ka5y -- View this message in context: http://elecraft.365791.n2.nabble.com/very-small-20A-switching-PS-tp7593251p7593261.html Sent from the Elecraft mailing list archive at Nabble.com. __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
Curiously, I have found that certain switching supplies can actually deliver quite a bit more peak, or very short duration current than their ratings would imply. For example I was testing a TS-480 HX running from a 25 Amp Astron switcher and was getting the full rated 200 watts out momentarily with barely noticeable voltage sag. At this level, the total supply current was around 35 Amps. Now, admittedly, I did not look at the DC waveform on a scope, but the SSB transmit audio sounded fine which to me, implied it was clean. I'll have to try again and look at the waveform. It'll have to be with resistor loads since I don't own the HX now. 73, Charlie k3ICH - Original Message - From: "Charlie T, K3ICH" To: Sent: Sunday, September 21, 2014 8:00 AM Subject: Re: [Elecraft] very small 20A switching PS "Gamma" something. Basically, a bank of Super Capacitors fed by a 5 (?) Amp switching supply. And yes, VERY small (& very expensive too) even when compared with the smaller 25 Amp switching supplies. However, those "larger" supplies can do 20 Amps continuously, but the Gamma can not. 73, Charlie k3ICH - Original Message - From: "Howard Sherer" To: Sent: Sunday, September 21, 2014 6:50 AM Subject: [Elecraft] very small 20A switching PS A few years ago there was some discussion here about a very small 12 v 20A switching PSU with very low noise that was designed for radio use. I am now interested in one for use with my KX3 & KXPA. Can someone point me in the right direction. Howard AE3T __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to pin...@erols.com __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to pin...@erols.com __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] very small 20A switching PS
Hello Charlie, I agree with you and am using Alinco DM-330MVE. I like Gamma but it is too expensive for me. 73 Johnny VR2XMC 寄件人︰ "Charlie T, K3ICH" 收件人︰ elecraft@mailman.qth.net 傳送日期︰ 2014年09月21日 (週日) 8:00 PM 主題︰ Re: [Elecraft] very small 20A switching PS "Gamma" something. Basically, a bank of Super Capacitors fed by a 5 (?) Amp switching supply. And yes, VERY small (& very expensive too) even when compared with the smaller 25 Amp switching supplies. However, those "larger" supplies can do 20 Amps continuously, but the Gamma can not. 73, Charlie k3ICH - Original Message - From: "Howard Sherer" To: Sent: Sunday, September 21, 2014 6:50 AM Subject: [Elecraft] very small 20A switching PS >A few years ago there was some discussion here about a very small 12 v 20A >switching PSU with very low noise that was designed for radio use. I am now >interested in one for use with my KX3 & KXPA. Can someone point me in the >right direction. > > Howard AE3T > > __ > 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 hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to pin...@erols.com __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to vr2...@yahoo.com.hk __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
"Gamma" something. Basically, a bank of Super Capacitors fed by a 5 (?) Amp switching supply. And yes, VERY small (& very expensive too) even when compared with the smaller 25 Amp switching supplies. However, those "larger" supplies can do 20 Amps continuously, but the Gamma can not. 73, Charlie k3ICH - Original Message - From: "Howard Sherer" To: Sent: Sunday, September 21, 2014 6:50 AM Subject: [Elecraft] very small 20A switching PS A few years ago there was some discussion here about a very small 12 v 20A switching PSU with very low noise that was designed for radio use. I am now interested in one for use with my KX3 & KXPA. Can someone point me in the right direction. Howard AE3T __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to pin...@erols.com __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
Hi Howard, I did a total shack cleanup when I got the Elecraft K3... The details are here: http://nk7z.net/rebuilding-the-shack/ look about halfway down in the article, under "The Final Layout", and to the left is a photo and in the text is a link to the PS I use... 25 amps, small, and as quiet as they come as far as I can tell... -- Thanks and 73's, For equipment, and software setups and reviews see: www.nk7z.net for MixW support see; http://groups.yahoo.com/neo/groups/mixw/info for Dopplergram information see: http://groups.yahoo.com/neo/groups/dopplergram/info for MM-SSTV see: http://groups.yahoo.com/neo/groups/MM-SSTV/info On Sun, 2014-09-21 at 06:50 -0400, Howard Sherer wrote: > A few years ago there was some discussion here about a very small 12 v > 20A switching PSU with very low noise that was designed for radio use. I > am now interested in one for use with my KX3 & KXPA. Can someone point > me in the right direction. > > Howard AE3T > > __ > 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 hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to d...@nk7z.net __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] very small 20A switching PS
I have used the Gamma Research HPS-1a for several years and love it. It fits easily in my K3 pelican case. . Output is 22A at 25 percent duty. http://www.gammaresearch.net/hps-1a.html Nick N3WG On Sep 21, 2014 7:51 PM, "Howard Sherer" wrote: > A few years ago there was some discussion here about a very small 12 v 20A > switching PSU with very low noise that was designed for radio use. I am now > interested in one for use with my KX3 & KXPA. Can someone point me in the > right direction. > > Howard AE3T > > __ > 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 hosted by: http://www.qsl.net > Please help support this email list: http://www.qsl.net/donate.html > Message delivered to nwgar...@gmail.com > __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] very small 20A switching PS
A few years ago there was some discussion here about a very small 12 v 20A switching PSU with very low noise that was designed for radio use. I am now interested in one for use with my KX3 & KXPA. Can someone point me in the right direction. Howard AE3T __ 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 hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
