Re: [Flexradio] New PS. Switching or not?
And my ancient SDR-1000, who's internal -15 volt switching power supply I watch drifting up and down the bands. KB article: http://kb.flex-radio.com/article.aspx?id=10277 Jim Lux wrote: Quoting Ray, K9DUR [EMAIL PROTECTED], on Mon 21 Jul 2008 07:32:15 PM PDT: ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] New PS. Switching or not?
TNX a lot to ALL for your answers. My problem with noise in the PS has been solved. I was using an Alinco DM-330MVE PS. When i was in TX i could listen a noise inside the PS. I have changed it for a Diamond GSV3000 Power Supply. All is fine now, no problems, no noise and when in TX Voltage stays solid. With the Alinco it was going down around 1 v at full power. Is very possible that problem was my Alinco PS and not all the Alinco's 330. TNX a lot. -- Rubén Navarro Huedo http://www.palotes.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
[Flexradio] New PS. Switching or not?
The negative comments about switching supplies are about 10 years out of date. Besides being much more efficient (power conservation), modern switching supplies also have better regulation under load and are capable of delivering a cleaner DC.. Now that the switching supply technology has matured, linear supplies are the CRT and film camera of the power supply industry. Just about any new professional/commercial grade product such as broadcast transmitters will be powered by a switcher now. I bought my last linear supply 4 years ago, heavy and overpriced and like CRT monitors and film cameras, never again except possibly for a 1.5 kw RF amp.. 73 rob / k5uj ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] New PS. Switching or not?
Rob, AMEN! 73, Ray, K9DUR (BSEE) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rob Atkinson Sent: Monday, July 21, 2008 6:59 PM To: flexradio@flex-radio.biz Subject: [Flexradio] New PS. Switching or not? The negative comments about switching supplies are about 10 years out of date. Besides being much more efficient (power conservation), modern switching supplies also have better regulation under load and are capable of delivering a cleaner DC.. Now that the switching supply technology has matured, linear supplies are the CRT and film camera of the power supply industry. Just about any new professional/commercial grade product such as broadcast transmitters will be powered by a switcher now. I bought my last linear supply 4 years ago, heavy and overpriced and like CRT monitors and film cameras, never again except possibly for a 1.5 kw RF amp.. 73 rob / k5uj ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] New PS. Switching or not?
Quoting Ray, K9DUR [EMAIL PROTECTED], on Mon 21 Jul 2008 07:32:15 PM PDT:
Rob,
AMEN!
73, Ray, K9DUR
(BSEE)
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Rob Atkinson
Sent: Monday, July 21, 2008 6:59 PM
To: flexradio@flex-radio.biz
Subject: [Flexradio] New PS. Switching or not?
The negative comments about switching supplies are about 10 years out
of date.
And perfectly reasonable, given that hams seem to use gear they found
at a hamfest 10 years ago, where it was being surplussed as being 10
years old.
Heck, the ARRL handbook used to (and may still) have instructions on
rewinding a power transformer pulled out of a junked television, with
guidance on IACS vs CCS ratings.
{why yes, I have boxes full of 10,15,20 year old DC/DC converters out
in the garage...}
Jim, W6RMK
___
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[Flexradio] New PS. Switching or not?
Hello friends: I have to buy a new power supply for my 5000a. What is your advice? Switching or not switching ps ? TNX a lot. -- Rubén Navarro Huedo http://www.palotes.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] New PS. Switching or not?
I used my Astron 50amp big heavy power supply. It may be overkill but it's solid. good luck I prefer non switching. But QST had a review of switching ps a while back. You should be able to find that review online. I think you want the supply that creates the least noise. Some switching supplies are much better than others. good luck On 7/20/2008 3:44:12 AM, Ruben Navarro Huedo ([EMAIL PROTECTED]) wrote: Hello friends: I have to buy a new power supply for my 5000a. What is your advice? Switching or not switching ps ? TNX a lot. -- Rubén Navarro Huedo http://www.palotes.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio. com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] New PS. Switching or not?
Ruben, I prefer a switching supply due to their smaller size, lighter weight, higher efficiency. I have 3 of the Alinco DM-330MV switching supplies. These supplies are rated at 32 Amp max, 26 Amp continuous, and handle my Flex-5000A with no problem. Some of the earlier switching power supplies generated some RF hash, but I have never heard any noise with the Alinco. 73, Ray, K9DUR ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] New PS. Switching or not?
I would definitely go non-switching but just a reminder: You are already using switching power supply in your shack and often it is of the cheapest quality known to man: in you PC. I honestly believe that people should think putting in a high-quality pc power supply. Unfortunately a non-switching pc ps doesn't exist (to my knowledge). Neal On Sun, Jul 20, 2008 at 6:51 AM, FireBrick [EMAIL PROTECTED] wrote: I used my Astron 50amp big heavy power supply. It may be overkill but it's solid. good luck I prefer non switching. But QST had a review of switching ps a while back. You should be able to find that review online. I think you want the supply that creates the least noise. Some switching supplies are much better than others. good luck On 7/20/2008 3:44:12 AM, Ruben Navarro Huedo ([EMAIL PROTECTED]) wrote: Hello friends: I have to buy a new power supply for my 5000a. What is your advice? Switching or not switching ps ? TNX a lot. -- Rubén Navarro Huedo http://www.palotes.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio. com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- Neal Campbell Abroham Neal Software Programming Services for Windows, OS X and Linux (540) 242 0911 - Try Spot for OS X, the intelligent DXCluster Client at www.abrohamnealsoftware.com - introduction priced at $10.99 - For a great dog book, visit www.abrohamneal.com - See the FlexRadio Systems Flex-5000a in action at www.flex-videos.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] New PS. Switching or not?
Well, guys, I try to use reflector comments to give me a heads up whenever possible. As soon as I placed my order for the 5000A last spring I immediately started to think about the power supply and had decided that I wanted an old fashioned supply. After some time I found a Hewlett Packard 6200 series on eBay with remote sensing, good regulation and ripple specs and I suspected a monster transformer and capacitor bank. I was right! After the recent comments I ordered a one farad capacitor which arrived last week, went into the junk box and found a mercury wetted contactor to short out the start up resistor so I can turn things off and on without too much worry. So now I can sit back and read the current comments without worry! Cooling and shielding are other areas that I've tried to pay close attention to. I won't comment on those, though, since Gerald, Eric and Tim might get excited! The XYL calls this sort of thing Another Of Your Overdone Projects. 73 Lee K9WRU - Original Message - From: Neal Campbell [EMAIL PROTECTED] To: FireBrick [EMAIL PROTECTED] Cc: FlexRadio List flexradio@flex-radio.biz Sent: Sunday, July 20, 2008 7:50 AM Subject: Re: [Flexradio] New PS. Switching or not? I would definitely go non-switching but just a reminder: You are already using switching power supply in your shack and often it is of the cheapest quality known to man: in you PC. I honestly believe that people should think putting in a high-quality pc power supply. Unfortunately a non-switching pc ps doesn't exist (to my knowledge). Neal On Sun, Jul 20, 2008 at 6:51 AM, FireBrick [EMAIL PROTECTED] wrote: I used my Astron 50amp big heavy power supply. It may be overkill but it's solid. good luck I prefer non switching. But QST had a review of switching ps a while back. You should be able to find that review online. I think you want the supply that creates the least noise. Some switching supplies are much better than others. good luck On 7/20/2008 3:44:12 AM, Ruben Navarro Huedo ([EMAIL PROTECTED]) wrote: Hello friends: I have to buy a new power supply for my 5000a. What is your advice? Switching or not switching ps ? TNX a lot. -- Rubén Navarro Huedo http://www.palotes.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio. com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- Neal Campbell Abroham Neal Software Programming Services for Windows, OS X and Linux (540) 242 0911 - Try Spot for OS X, the intelligent DXCluster Client at www.abrohamnealsoftware.com - introduction priced at $10.99 - For a great dog book, visit www.abrohamneal.com - See the FlexRadio Systems Flex-5000a in action at www.flex-videos.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/
Re: [Flexradio] New PS. Switching or not?
Hi, my experience is that switching power supplies are much better than their reputation as reflected here in the comments of the last days. I am using switching supplies within my self-assembled computer (build-in in the housing SilvStone LC11), at 13.8V for the F5k (Manson SPS9600), in addition two ones in my homemade MosFET linear one at 12V and another one at 48V (SCP-1k2-48) the latter delivering 1.2 kW output. So far I don't see any problems. A quarter century ago with the technology of these days I had problems and found birdies every 40 kHz even within the 2 m band and replaced the switching supply of the transverter by an analog controlled one, however, with modern ones, ... see before. Hans, DL2MDQ. Lee Mushel schrieb: Well, guys, I try to use reflector comments to give me a heads up whenever possible. As soon as I placed my order for the 5000A last spring I immediately started to think about the power supply and had decided that I wanted an old fashioned supply. After some time I found a Hewlett Packard 6200 series on eBay with remote sensing, good regulation and ripple specs and I suspected a monster transformer and capacitor bank. I was right! After the recent comments I ordered a one farad capacitor which arrived last week, went into the junk box and found a mercury wetted contactor to short out the start up resistor so I can turn things off and on without too much worry. So now I can sit back and read the current comments without worry! Cooling and shielding are other areas that I've tried to pay close attention to. I won't comment on those, though, since Gerald, Eric and Tim might get excited! The XYL calls this sort of thing Another Of Your Overdone Projects. 73 Lee K9WRU - Original Message - From: Neal Campbell [EMAIL PROTECTED] To: FireBrick [EMAIL PROTECTED] Cc: FlexRadio List flexradio@flex-radio.biz Sent: Sunday, July 20, 2008 7:50 AM Subject: Re: [Flexradio] New PS. Switching or not? I would definitely go non-switching but just a reminder: You are already using switching power supply in your shack and often it is of the cheapest quality known to man: in you PC. I honestly believe that people should think putting in a high-quality pc power supply. Unfortunately a non-switching pc ps doesn't exist (to my knowledge). Neal On Sun, Jul 20, 2008 at 6:51 AM, FireBrick [EMAIL PROTECTED] wrote: I used my Astron 50amp big heavy power supply. It may be overkill but it's solid. good luck I prefer non switching. But QST had a review of switching ps a while back. You should be able to find that review online. I think you want the supply that creates the least noise. Some switching supplies are much better than others. good luck On 7/20/2008 3:44:12 AM, Ruben Navarro Huedo ([EMAIL PROTECTED]) wrote: Hello friends: I have to buy a new power supply for my 5000a. What is your advice? Switching or not switching ps ? TNX a lot. -- Rubén Navarro Huedo http://www.palotes.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio. com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ -- Neal Campbell Abroham Neal Software Programming Services for Windows, OS X and Linux (540) 242 0911 - Try Spot for OS X, the intelligent DXCluster Client at www.abrohamnealsoftware.com - introduction priced at $10.99 - For a great dog book, visit www.abrohamneal.com - See the FlexRadio Systems Flex-5000a in action at www.flex-videos.com ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo/flexradio_flex-radio.biz Archives: http://www.mail-archive.com/flexradio%40flex-radio.biz/ Knowledge Base: http://kb.flex-radio.com/ Homepage: http://www.flex-radio.com/ . ___ FlexRadio Systems Mailing List FlexRadio@flex-radio.biz http://mail.flex-radio.biz/mailman/listinfo
