SS30DV feedback
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Hello
I will appreciate feedback from users of the SS30DV power supply with a K3 Are you happy with it? With full power on the K3, the SS30DV is running comfortable? IS noisy? If you compare for example with a Samlex SEC-1235M, what do you think? Thanks very much 73, Jorge CX6VM/CW5W --- El software de antivirus Avast ha analizado este correo electrónico en busca de virus. https://www.avast.com/antivirus ______________________________________________________________ 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 Message delivered to [hidden email] |
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I just got mine with my K3S and haven’t even noticed it other than the power lamp being on. No issues or power drops at full power out.
-----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Jorge Diez - CX6VM Sent: Friday, October 02, 2015 8:19 AM To: [hidden email] Subject: [Elecraft] SS30DV feedback Hello I will appreciate feedback from users of the SS30DV power supply with a K3 Are you happy with it? With full power on the K3, the SS30DV is running comfortable? IS noisy? If you compare for example with a Samlex SEC-1235M, what do you think? Thanks very much 73, Jorge CX6VM/CW5W --- El software de antivirus Avast ha analizado este correo electrónico en busca de virus. https://www.avast.com/antivirus ______________________________________________________________ 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 Message delivered to [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Jorge Diez - CX6VM-2
Hi Jorge,
I have both power supplies here - SS30DV and the Samlex SEC1235M. Except for the 1235 having voltage and current meters (the SS30 does not), there is little difference in performance. One thing that might affect your decision is that the 1235 has an (internally) adjustable output voltage. The SS30DV is fixed at 14.1V. I run full power with a K3 and with a KX3/KXPA100 with either power supply, and no isssues found with either one. 73, matt W6NIA On Fri, 2 Oct 2015 09:18:32 -0300, you wrote: >Hello > > > >I will appreciate feedback from users of the SS30DV power supply with a K3 > > > >Are you happy with it? With full power on the K3, the SS30DV is running >comfortable? IS noisy? > > > >If you compare for example with a Samlex SEC-1235M, what do you think? > > > >Thanks very much > > > >73, > >Jorge > >CX6VM/CW5W > > > >--- >El software de antivirus Avast ha analizado este correo electrónico en busca de virus. >https://www.avast.com/antivirus >______________________________________________________________ >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 >Message delivered to [hidden email] -- "Always store beer in a dark place." -R. Heinlein ______________________________________________________________ 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 Message delivered to [hidden email] |
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Hello Matt
Thanks for the Info. I have two SEC-1235M and I hate the terminal screws, I think they are aluminum and I broke them if removing power cable too much times I prefer a PS with black and red connectors so I can connect any cable and don´t worry about connectors. Thanks! Jorge CX6VM/CW5W -----Mensaje original----- De: Matt Zilmer [mailto:[hidden email]] Enviado el: viernes, 02 de octubre de 2015 12:13 p.m. Para: Jorge Diez - CX6VM CC: [hidden email] Asunto: Re: [Elecraft] SS30DV feedback Hi Jorge, I have both power supplies here - SS30DV and the Samlex SEC1235M. Except for the 1235 having voltage and current meters (the SS30 does not), there is little difference in performance. One thing that might affect your decision is that the 1235 has an (internally) adjustable output voltage. The SS30DV is fixed at 14.1V. I run full power with a K3 and with a KX3/KXPA100 with either power supply, and no isssues found with either one. 73, matt W6NIA On Fri, 2 Oct 2015 09:18:32 -0300, you wrote: >Hello > > > >I will appreciate feedback from users of the SS30DV power supply with a >K3 > > > >Are you happy with it? With full power on the K3, the SS30DV is >running comfortable? IS noisy? > > > >If you compare for example with a Samlex SEC-1235M, what do you think? > > > >Thanks very much > > > >73, > >Jorge > >CX6VM/CW5W > > > >--- >El software de antivirus Avast ha analizado este correo electrónico en >https://www.avast.com/antivirus >______________________________________________________________ >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 Message delivered to >[hidden email] -- "Always store beer in a dark place." -R. Heinlein --- El software de antivirus Avast ha analizado este correo electrónico en busca de virus. https://www.avast.com/antivirus ______________________________________________________________ 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 Message delivered to [hidden email] |
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I didn't much like the Euro-style clamping terminals either. I built
a short pigtail to 30A APP, and just leave the terminals alone. They're not robust enough for constant plugging in/out. The Samlex here is powered 100% of the time. Its output goes to a solar charge controller used to maintain SOC on an Optima 75 AH battery. The charge controller has two inputs, and the other one is connected to 100W of solar PV on the roof. All the power terminations in this setup are APP. The SS30DV has two APP terminations on the front of the unit, and a 1/4" / banana lab-style termination on the rear. You might like this arrangement better than the Samlex. Elecraft sells the SS30DV too. 73, matt W6NIA On Fri, 2 Oct 2015 12:33:26 -0300, you wrote: >Hello Matt > >Thanks for the Info. > >I have two SEC-1235M and I hate the terminal screws, I think they are >aluminum and I broke them if removing power cable too much times > >I prefer a PS with black and red connectors so I can connect any cable and >don´t worry about connectors. > >Thanks! >Jorge >CX6VM/CW5W > >-----Mensaje original----- >De: Matt Zilmer [mailto:[hidden email]] >Enviado el: viernes, 02 de octubre de 2015 12:13 p.m. >Para: Jorge Diez - CX6VM >CC: [hidden email] >Asunto: Re: [Elecraft] SS30DV feedback > >Hi Jorge, > >I have both power supplies here - SS30DV and the Samlex SEC1235M. > >Except for the 1235 having voltage and current meters (the SS30 does not), >there is little difference in performance. One thing that might affect your >decision is that the 1235 has an (internally) adjustable output voltage. >The SS30DV is fixed at 14.1V. > >I run full power with a K3 and with a KX3/KXPA100 with either power supply, >and no isssues found with either one. > >73, >matt >W6NIA > >On Fri, 2 Oct 2015 09:18:32 -0300, you wrote: > >>Hello >> >> >> >>I will appreciate feedback from users of the SS30DV power supply with a >>K3 >> >> >> >>Are you happy with it? With full power on the K3, the SS30DV is >>running comfortable? IS noisy? >> >> >> >>If you compare for example with a Samlex SEC-1235M, what do you think? >> >> >> >>Thanks very much >> >> >> >>73, >> >>Jorge >> >>CX6VM/CW5W >> >> >> >>--- >>El software de antivirus Avast ha analizado este correo electrónico en >busca de virus. >>https://www.avast.com/antivirus >>______________________________________________________________ >>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 Message delivered to >>[hidden email] >Matt Zilmer, W6NIA -- "Always store beer in a dark place." -R. Heinlein ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Jorge Diez - CX6VM-2
We had spurs all over the 80 meter band here on the K3S station that is being run as a remote, approximately 30 khz apart. The main station 50 ft away (but on different antennas spaced 100 feet) had no noise. At first we suspected the OCF dipole, then the networking boxes, then the laptop. Put a gelcel in place of the PS and voila!So it was the SS30 PS. 5 turns of the K3 power cord around a type 31 2.4 inch diameter toroid took all the noise right out.
Rick K2XT ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Jorge Diez - CX6VM-2
> I prefer a PS with black and red connectors so I can connect any > cable and don´t worry about connectors. Quality *bolt* terminals will generally show less voltage drop in transmit than the wiping contacts like PowerPole connectors. That is particularly true when the PowerPoles are not assembled correctly and there is less than full pressure between the wiping contacts. I would prefer any power supply and transceiver with greater than 5A current rating use 1/4" or 3/8" stub bolted connections like the Astron RS-35A/RS-35M and potentially provide a voltage sense connection to support load sensing for supplies that support it or can be modified to support it. 73, ... Joe, W4TV On 10/2/2015 11:33 AM, Jorge Diez - CX6VM wrote: > Hello Matt > > Thanks for the Info. > > I have two SEC-1235M and I hate the terminal screws, I think they are > aluminum and I broke them if removing power cable too much times > > I prefer a PS with black and red connectors so I can connect any cable and > don´t worry about connectors. > > Thanks! > Jorge > CX6VM/CW5W > > -----Mensaje original----- > De: Matt Zilmer [mailto:[hidden email]] > Enviado el: viernes, 02 de octubre de 2015 12:13 p.m. > Para: Jorge Diez - CX6VM > CC: [hidden email] > Asunto: Re: [Elecraft] SS30DV feedback > > Hi Jorge, > > I have both power supplies here - SS30DV and the Samlex SEC1235M. > > Except for the 1235 having voltage and current meters (the SS30 does not), > there is little difference in performance. One thing that might affect your > decision is that the 1235 has an (internally) adjustable output voltage. > The SS30DV is fixed at 14.1V. > > I run full power with a K3 and with a KX3/KXPA100 with either power supply, > and no isssues found with either one. > > 73, > matt > W6NIA > > On Fri, 2 Oct 2015 09:18:32 -0300, you wrote: > >> Hello >> >> >> >> I will appreciate feedback from users of the SS30DV power supply with a >> K3 >> >> >> >> Are you happy with it? With full power on the K3, the SS30DV is >> running comfortable? IS noisy? >> >> >> >> If you compare for example with a Samlex SEC-1235M, what do you think? >> >> >> >> Thanks very much >> >> >> >> 73, >> >> Jorge >> >> CX6VM/CW5W >> >> >> >> --- >> El software de antivirus Avast ha analizado este correo electrónico en > busca de virus. >> https://www.avast.com/antivirus >> ______________________________________________________________ >> 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 Message delivered to >> [hidden email] > Matt Zilmer, W6NIA > -- > "Always store beer in a dark place." -R. Heinlein > > > --- > El software de antivirus Avast ha analizado este correo electrónico en busca de virus. > https://www.avast.com/antivirus > > ______________________________________________________________ > 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 > Message delivered to [hidden email] > 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 Message delivered to [hidden email] |
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In reply to this post by Rick Stealey
I have similar spur issues, approx 30khz apart, with the SS30DV on 40 & 80 meters as well. I do not get any noise from my Samlex 1235M using the same power cabling and same installation location. I will try the suggested toroid solution to see if I can get rid of the spurs. I do prefer the connectors of the SS30DV.
Marty, K1MTK On Oct 2, 2015, at 11:50 AM, Rick Stealey <[hidden email]> wrote: We had spurs all over the 80 meter band here on the K3S station that is being run as a remote, approximately 30 khz apart. The main station 50 ft away (but on different antennas spaced 100 feet) had no noise. At first we suspected the OCF dipole, then the networking boxes, then the laptop. Put a gelcel in place of the PS and voila!So it was the SS30 PS. 5 turns of the K3 power cord around a type 31 2.4 inch diameter toroid took all the noise right out. Rick K2XT ______________________________________________________________ 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 Message delivered to [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Joe Subich, W4TV-4
The SS30DV has +/- bolt terminals on the rear. The K3S is supplied with a power
cable using ring lugs for these bolts on one end, and an APP connector for the K3S on the other. One other note, at the 100W operating level, we do not see any significant voltage drop across the APP conn. 73, Eric /elecraft.com/ On 10/2/2015 8:53 AM, Joe Subich, W4TV wrote: > >> I prefer a PS with black and red connectors so I can connect any >> cable and don´t worry about connectors. > > Quality *bolt* terminals will generally show less voltage drop in > transmit than the wiping contacts like PowerPole connectors. That > is particularly true when the PowerPoles are not assembled correctly > and there is less than full pressure between the wiping contacts. > > I would prefer any power supply and transceiver with greater than > 5A current rating use 1/4" or 3/8" stub bolted connections like > the Astron RS-35A/RS-35M and potentially provide a voltage sense > connection to support load sensing for supplies that support it or > can be modified to support it. > > 73, > > ... Joe, W4TV > > > On 10/2/2015 11:33 AM, Jorge Diez - CX6VM wrote: >> Hello Matt >> >> Thanks for the Info. >> >> I have two SEC-1235M and I hate the terminal screws, I think they are >> aluminum and I broke them if removing power cable too much times >> >> I prefer a PS with black and red connectors so I can connect any cable and >> don´t worry about connectors. >> >> Thanks! >> Jorge >> CX6VM/CW5W >> >> -----Mensaje original----- >> De: Matt Zilmer [mailto:[hidden email]] >> Enviado el: viernes, 02 de octubre de 2015 12:13 p.m. >> Para: Jorge Diez - CX6VM >> CC: [hidden email] >> Asunto: Re: [Elecraft] SS30DV feedback >> >> Hi Jorge, >> >> I have both power supplies here - SS30DV and the Samlex SEC1235M. >> >> Except for the 1235 having voltage and current meters (the SS30 does not), >> there is little difference in performance. One thing that might affect your >> decision is that the 1235 has an (internally) adjustable output voltage. >> The SS30DV is fixed at 14.1V. >> >> I run full power with a K3 and with a KX3/KXPA100 with either power supply, >> and no isssues found with either one. >> >> 73, >> matt >> W6NIA >> >> On Fri, 2 Oct 2015 09:18:32 -0300, you wrote: >> >>> Hello >>> >>> >>> >>> I will appreciate feedback from users of the SS30DV power supply with a >>> K3 >>> >>> >>> >>> Are you happy with it? With full power on the K3, the SS30DV is >>> running comfortable? IS noisy? >>> >>> >>> >>> If you compare for example with a Samlex SEC-1235M, what do you think? >>> >>> >>> >>> Thanks very much >>> >>> >>> >>> 73, >>> >>> Jorge >>> >>> CX6VM/CW5W >>> >>> >>> >>> --- >>> El software de antivirus Avast ha analizado este correo electrónico en >> busca de virus. >>> https://www.avast.com/antivirus >>> ______________________________________________________________ >>> 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 Message delivered to >>> [hidden email] >> Matt Zilmer, W6NIA >> -- >> "Always store beer in a dark place." -R. Heinlein >> >> >> --- >> El software de antivirus Avast ha analizado este correo electrónico en busca >> de virus. >> https://www.avast.com/antivirus >> >> ______________________________________________________________ >> 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 >> Message delivered to [hidden email] >> > ______________________________________________________________ > 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 > Message delivered to [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] |
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Thanks all and Eric for the feedback
73, Jorge CX6VM/CW5W -----Mensaje original----- De: [hidden email] [mailto:[hidden email]] En nombre de Eric Swartz - WA6HHQ, Elecraft Enviado el: viernes, 02 de octubre de 2015 01:34 p.m. Para: Joe Subich, W4TV; [hidden email] Asunto: Re: [Elecraft] SS30DV feedback The SS30DV has +/- bolt terminals on the rear. The K3S is supplied with a power cable using ring lugs for these bolts on one end, and an APP connector for the K3S on the other. One other note, at the 100W operating level, we do not see any significant voltage drop across the APP conn. 73, Eric /elecraft.com/ On 10/2/2015 8:53 AM, Joe Subich, W4TV wrote: > >> I prefer a PS with black and red connectors so I can connect any >> cable and don t worry about connectors. > > Quality *bolt* terminals will generally show less voltage drop in > transmit than the wiping contacts like PowerPole connectors. That is > particularly true when the PowerPoles are not assembled correctly and > there is less than full pressure between the wiping contacts. > > I would prefer any power supply and transceiver with greater than 5A > current rating use 1/4" or 3/8" stub bolted connections like the > Astron RS-35A/RS-35M and potentially provide a voltage sense > connection to support load sensing for supplies that support it or can > be modified to support it. > > 73, > > ... Joe, W4TV > > > On 10/2/2015 11:33 AM, Jorge Diez - CX6VM wrote: >> Hello Matt >> >> Thanks for the Info. >> >> I have two SEC-1235M and I hate the terminal screws, I think they are >> aluminum and I broke them if removing power cable too much times >> >> I prefer a PS with black and red connectors so I can connect any >> cable and don t worry about connectors. >> >> Thanks! >> Jorge >> CX6VM/CW5W >> >> -----Mensaje original----- >> De: Matt Zilmer [mailto:[hidden email]] Enviado el: viernes, >> 02 de octubre de 2015 12:13 p.m. >> Para: Jorge Diez - CX6VM >> CC: [hidden email] >> Asunto: Re: [Elecraft] SS30DV feedback >> >> Hi Jorge, >> >> I have both power supplies here - SS30DV and the Samlex SEC1235M. >> >> Except for the 1235 having voltage and current meters (the SS30 does >> not), there is little difference in performance. One thing that >> might affect your decision is that the 1235 has an (internally) adjustable output voltage. >> The SS30DV is fixed at 14.1V. >> >> I run full power with a K3 and with a KX3/KXPA100 with either power >> supply, and no isssues found with either one. >> >> 73, >> matt >> W6NIA >> >> On Fri, 2 Oct 2015 09:18:32 -0300, you wrote: >> >>> Hello >>> >>> >>> >>> I will appreciate feedback from users of the SS30DV power supply >>> with a >>> K3 >>> >>> >>> >>> Are you happy with it? With full power on the K3, the SS30DV is >>> running comfortable? IS noisy? >>> >>> >>> >>> If you compare for example with a Samlex SEC-1235M, what do you think? >>> >>> >>> >>> Thanks very much >>> >>> >>> >>> 73, >>> >>> Jorge >>> >>> CX6VM/CW5W >>> >>> >>> >>> --- >>> El software de antivirus Avast ha analizado este correo electr nico >>> en >> busca de virus. >>> https://www.avast.com/antivirus >>> ______________________________________________________________ >>> 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 >>> list: http://www.qsl.net/donate.html Message delivered to >>> [hidden email] >> Matt Zilmer, W6NIA >> -- >> "Always store beer in a dark place." -R. Heinlein >> >> >> --- >> El software de antivirus Avast ha analizado este correo electr nico >> en busca de virus. >> https://www.avast.com/antivirus >> >> ______________________________________________________________ >> 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 Message delivered to >> [hidden email] >> > ______________________________________________________________ > 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 Message delivered to > [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] --- El software de antivirus Avast ha analizado este correo electrónico en busca de virus. https://www.avast.com/antivirus ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Eric Swartz - WA6HHQ
On 10/2/2015 12:33 PM, Eric Swartz - WA6HHQ, Elecraft wrote:
> The SS30DV has +/- bolt terminals on the rear. The K3S is supplied > with a power cable using ring lugs for these bolts on one end, and an > APP connector for the K3S on the other. Very good! How about remote sensing terminals/connector on the next iteration of the K3/K3S - ideally on the KPA3 <G>? 73, ... Joe, W4TV On 10/2/2015 12:33 PM, Eric Swartz - WA6HHQ, Elecraft wrote: > The SS30DV has +/- bolt terminals on the rear. The K3S is supplied with > a power cable using ring lugs for these bolts on one end, and an APP > connector for the K3S on the other. > > One other note, at the 100W operating level, we do not see any > significant voltage drop across the APP conn. > > 73, > > Eric > /elecraft.com/ > > On 10/2/2015 8:53 AM, Joe Subich, W4TV wrote: >> >>> I prefer a PS with black and red connectors so I can connect any >>> cable and don´t worry about connectors. >> >> Quality *bolt* terminals will generally show less voltage drop in >> transmit than the wiping contacts like PowerPole connectors. That >> is particularly true when the PowerPoles are not assembled correctly >> and there is less than full pressure between the wiping contacts. >> >> I would prefer any power supply and transceiver with greater than >> 5A current rating use 1/4" or 3/8" stub bolted connections like >> the Astron RS-35A/RS-35M and potentially provide a voltage sense >> connection to support load sensing for supplies that support it or >> can be modified to support it. >> >> 73, >> >> ... Joe, W4TV >> >> >> On 10/2/2015 11:33 AM, Jorge Diez - CX6VM wrote: >>> Hello Matt >>> >>> Thanks for the Info. >>> >>> I have two SEC-1235M and I hate the terminal screws, I think they are >>> aluminum and I broke them if removing power cable too much times >>> >>> I prefer a PS with black and red connectors so I can connect any >>> cable and >>> don´t worry about connectors. >>> >>> Thanks! >>> Jorge >>> CX6VM/CW5W >>> >>> -----Mensaje original----- >>> De: Matt Zilmer [mailto:[hidden email]] >>> Enviado el: viernes, 02 de octubre de 2015 12:13 p.m. >>> Para: Jorge Diez - CX6VM >>> CC: [hidden email] >>> Asunto: Re: [Elecraft] SS30DV feedback >>> >>> Hi Jorge, >>> >>> I have both power supplies here - SS30DV and the Samlex SEC1235M. >>> >>> Except for the 1235 having voltage and current meters (the SS30 does >>> not), >>> there is little difference in performance. One thing that might >>> affect your >>> decision is that the 1235 has an (internally) adjustable output voltage. >>> The SS30DV is fixed at 14.1V. >>> >>> I run full power with a K3 and with a KX3/KXPA100 with either power >>> supply, >>> and no isssues found with either one. >>> >>> 73, >>> matt >>> W6NIA >>> >>> On Fri, 2 Oct 2015 09:18:32 -0300, you wrote: >>> >>>> Hello >>>> >>>> >>>> >>>> I will appreciate feedback from users of the SS30DV power supply with a >>>> K3 >>>> >>>> >>>> >>>> Are you happy with it? With full power on the K3, the SS30DV is >>>> running comfortable? IS noisy? >>>> >>>> >>>> >>>> If you compare for example with a Samlex SEC-1235M, what do you think? >>>> >>>> >>>> >>>> Thanks very much >>>> >>>> >>>> >>>> 73, >>>> >>>> Jorge >>>> >>>> CX6VM/CW5W >>>> >>>> >>>> >>>> --- >>>> El software de antivirus Avast ha analizado este correo electrónico en >>> busca de virus. >>>> https://www.avast.com/antivirus >>>> ______________________________________________________________ >>>> 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 Message delivered to >>>> [hidden email] >>> Matt Zilmer, W6NIA >>> -- >>> "Always store beer in a dark place." -R. Heinlein >>> >>> >>> --- >>> El software de antivirus Avast ha analizado este correo electrónico >>> en busca de virus. >>> https://www.avast.com/antivirus >>> >>> ______________________________________________________________ >>> 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 >>> Message delivered to [hidden email] >>> >> ______________________________________________________________ >> 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 >> Message delivered to [hidden email] > > 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 Message delivered to [hidden email] |
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Joe, I am familiar with Kelvin sensing, otherwise known as 4 wire or remote sensing. Its advantages are probably outweighed by the risks of misconnecting and filtering needed for RF environments. With <4 feet of 10 ga wire I don't see significant voltage drops. I prefer KISS.
73 Fred, AE6QL -----Original Message----- From: [hidden email] [mailto:[hidden email]] On Behalf Of Joe Subich, W4TV Sent: Friday, October 2, 2015 12:33 PM To: Eric Swartz - WA6HHQ, Elecraft; [hidden email] Subject: Re: [Elecraft] SS30DV feedback On 10/2/2015 12:33 PM, Eric Swartz - WA6HHQ, Elecraft wrote: > The SS30DV has +/- bolt terminals on the rear. The K3S is supplied > with a power cable using ring lugs for these bolts on one end, and an > APP connector for the K3S on the other. Very good! How about remote sensing terminals/connector on the next iteration of the K3/K3S - ideally on the KPA3 <G>? 73, ... Joe, W4TV On 10/2/2015 12:33 PM, Eric Swartz - WA6HHQ, Elecraft wrote: > The SS30DV has +/- bolt terminals on the rear. The K3S is supplied > with a power cable using ring lugs for these bolts on one end, and an > APP connector for the K3S on the other. > > One other note, at the 100W operating level, we do not see any > significant voltage drop across the APP conn. > > 73, > > Eric > /elecraft.com/ > > On 10/2/2015 8:53 AM, Joe Subich, W4TV wrote: >> >>> I prefer a PS with black and red connectors so I can connect any >>> cable and don´t worry about connectors. >> >> Quality *bolt* terminals will generally show less voltage drop in >> transmit than the wiping contacts like PowerPole connectors. That is >> particularly true when the PowerPoles are not assembled correctly and >> there is less than full pressure between the wiping contacts. >> >> I would prefer any power supply and transceiver with greater than 5A >> current rating use 1/4" or 3/8" stub bolted connections like the >> Astron RS-35A/RS-35M and potentially provide a voltage sense >> connection to support load sensing for supplies that support it or >> can be modified to support it. >> >> 73, >> >> ... Joe, W4TV >> >> >> On 10/2/2015 11:33 AM, Jorge Diez - CX6VM wrote: >>> Hello Matt >>> >>> Thanks for the Info. >>> >>> I have two SEC-1235M and I hate the terminal screws, I think they >>> are aluminum and I broke them if removing power cable too much times >>> >>> I prefer a PS with black and red connectors so I can connect any >>> cable and don´t worry about connectors. >>> >>> Thanks! >>> Jorge >>> CX6VM/CW5W >>> >>> -----Mensaje original----- >>> De: Matt Zilmer [mailto:[hidden email]] Enviado el: viernes, >>> 02 de octubre de 2015 12:13 p.m. >>> Para: Jorge Diez - CX6VM >>> CC: [hidden email] >>> Asunto: Re: [Elecraft] SS30DV feedback >>> >>> Hi Jorge, >>> >>> I have both power supplies here - SS30DV and the Samlex SEC1235M. >>> >>> Except for the 1235 having voltage and current meters (the SS30 does >>> not), there is little difference in performance. One thing that >>> might affect your decision is that the 1235 has an (internally) >>> adjustable output voltage. >>> The SS30DV is fixed at 14.1V. >>> >>> I run full power with a K3 and with a KX3/KXPA100 with either power >>> supply, and no isssues found with either one. >>> >>> 73, >>> matt >>> W6NIA >>> >>> On Fri, 2 Oct 2015 09:18:32 -0300, you wrote: >>> >>>> Hello >>>> >>>> >>>> >>>> I will appreciate feedback from users of the SS30DV power supply >>>> with a >>>> K3 >>>> >>>> >>>> >>>> Are you happy with it? With full power on the K3, the SS30DV is >>>> running comfortable? IS noisy? >>>> >>>> >>>> >>>> If you compare for example with a Samlex SEC-1235M, what do you think? >>>> >>>> >>>> >>>> Thanks very much >>>> >>>> >>>> >>>> 73, >>>> >>>> Jorge >>>> >>>> CX6VM/CW5W >>>> >>>> >>>> >>>> --- >>>> El software de antivirus Avast ha analizado este correo electrónico >>>> en >>> busca de virus. >>>> https://www.avast.com/antivirus >>>> ______________________________________________________________ >>>> 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 >>>> list: http://www.qsl.net/donate.html Message delivered to >>>> [hidden email] >>> Matt Zilmer, W6NIA >>> -- >>> "Always store beer in a dark place." -R. Heinlein >>> >>> >>> --- >>> El software de antivirus Avast ha analizado este correo electrónico >>> en busca de virus. >>> https://www.avast.com/antivirus >>> >>> ______________________________________________________________ >>> 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 Message delivered to >>> [hidden email] >>> >> ______________________________________________________________ >> 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 Message delivered to >> [hidden email] > > 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 Message delivered to [hidden email] ______________________________________________________________ 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 Message delivered to [hidden email] |
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Fred,
I'm a fan of higher voltage -- perhaps 24 or 40 volts so that PA transistors can produce cleaner signals. Doing so reduces any IR drop on power supply wiring by a factor of 2 or 3. KISS. IC's are going to lower and lower voltages. Multiple circuits within boxes require a menagerie of voltages. One is faced with having to generate more heat in regulators dropping 40 volts to 12, maybe 5, 3.3 and 1.6 V. Perhaps the era of efficient multivoltage power supplies with multiple wires for multiple voltages will return. (Remember filament ,plate, screen and grid voltage power supplies in days of yore? Guys generally didn't mistakenly hook up the 3500 V B+ wire to the filaments......) 73 de Brian/K3KO On 10/2/2015 19:54 PM, Fred Townsend wrote: > Joe, I am familiar with Kelvin sensing, otherwise known as 4 wire or remote sensing. Its advantages are probably outweighed by the risks of misconnecting and filtering needed for RF environments. With <4 feet of 10 ga wire I don't see significant voltage drops. I prefer KISS. > 73 > Fred, AE6QL > > -----Original Message----- > From: [hidden email] [mailto:[hidden email]] On Behalf Of Joe Subich, W4TV > Sent: Friday, October 2, 2015 12:33 PM > To: Eric Swartz - WA6HHQ, Elecraft; [hidden email] > Subject: Re: [Elecraft] SS30DV feedback > > On 10/2/2015 12:33 PM, Eric Swartz - WA6HHQ, Elecraft wrote: >> The SS30DV has +/- bolt terminals on the rear. The K3S is supplied >> with a power cable using ring lugs for these bolts on one end, and an >> APP connector for the K3S on the other. > Very good! How about remote sensing terminals/connector on the next iteration of the K3/K3S - ideally on the KPA3 <G>? > > 73, > > ... Joe, W4TV > > > On 10/2/2015 12:33 PM, Eric Swartz - WA6HHQ, Elecraft wrote: >> The SS30DV has +/- bolt terminals on the rear. The K3S is supplied >> with a power cable using ring lugs for these bolts on one end, and an >> APP connector for the K3S on the other. >> >> One other note, at the 100W operating level, we do not see any >> significant voltage drop across the APP conn. >> >> 73, >> >> Eric >> /elecraft.com/ >> >> On 10/2/2015 8:53 AM, Joe Subich, W4TV wrote: >>>> I prefer a PS with black and red connectors so I can connect any >>>> cable and don´t worry about connectors. >>> Quality *bolt* terminals will generally show less voltage drop in >>> transmit than the wiping contacts like PowerPole connectors. That is >>> particularly true when the PowerPoles are not assembled correctly and >>> there is less than full pressure between the wiping contacts. >>> >>> I would prefer any power supply and transceiver with greater than 5A >>> current rating use 1/4" or 3/8" stub bolted connections like the >>> Astron RS-35A/RS-35M and potentially provide a voltage sense >>> connection to support load sensing for supplies that support it or >>> can be modified to support it. >>> >>> 73, >>> >>> ... Joe, W4TV >>> >>> >>> On 10/2/2015 11:33 AM, Jorge Diez - CX6VM wrote: >>>> Hello Matt >>>> >>>> Thanks for the Info. >>>> >>>> I have two SEC-1235M and I hate the terminal screws, I think they >>>> are aluminum and I broke them if removing power cable too much times >>>> >>>> I prefer a PS with black and red connectors so I can connect any >>>> cable and don´t worry about connectors. >>>> >>>> Thanks! >>>> Jorge >>>> CX6VM/CW5W >>>> >>>> -----Mensaje original----- >>>> De: Matt Zilmer [mailto:[hidden email]] Enviado el: viernes, >>>> 02 de octubre de 2015 12:13 p.m. >>>> Para: Jorge Diez - CX6VM >>>> CC: [hidden email] >>>> Asunto: Re: [Elecraft] SS30DV feedback >>>> >>>> Hi Jorge, >>>> >>>> I have both power supplies here - SS30DV and the Samlex SEC1235M. >>>> >>>> Except for the 1235 having voltage and current meters (the SS30 does >>>> not), there is little difference in performance. One thing that >>>> might affect your decision is that the 1235 has an (internally) >>>> adjustable output voltage. >>>> The SS30DV is fixed at 14.1V. >>>> >>>> I run full power with a K3 and with a KX3/KXPA100 with either power >>>> supply, and no isssues found with either one. >>>> >>>> 73, >>>> matt >>>> W6NIA >>>> >>>> On Fri, 2 Oct 2015 09:18:32 -0300, you wrote: >>>> >>>>> Hello >>>>> >>>>> >>>>> >>>>> I will appreciate feedback from users of the SS30DV power supply >>>>> with a >>>>> K3 >>>>> >>>>> >>>>> >>>>> Are you happy with it? With full power on the K3, the SS30DV is >>>>> running comfortable? IS noisy? >>>>> >>>>> >>>>> >>>>> If you compare for example with a Samlex SEC-1235M, what do you think? >>>>> >>>>> >>>>> >>>>> Thanks very much >>>>> >>>>> >>>>> >>>>> 73, >>>>> >>>>> Jorge >>>>> >>>>> CX6VM/CW5W >>>>> >>>>> >>>>> >>>>> --- >>>>> El software de antivirus Avast ha analizado este correo electrónico >>>>> en >>>> busca de virus. >>>>> https://www.avast.com/antivirus >>>>> ______________________________________________________________ >>>>> 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 >>>>> list: http://www.qsl.net/donate.html Message delivered to >>>>> [hidden email] >>>> Matt Zilmer, W6NIA >>>> -- >>>> "Always store beer in a dark place." -R. Heinlein >>>> >>>> >>>> --- >>>> El software de antivirus Avast ha analizado este correo electrónico >>>> en busca de virus. >>>> https://www.avast.com/antivirus >>>> >>>> ______________________________________________________________ >>>> 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 Message delivered to >>>> [hidden email] >>>> >>> ______________________________________________________________ >>> 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 Message delivered to >>> [hidden email] >> > ______________________________________________________________ > 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 Message delivered to [hidden email] > > ______________________________________________________________ > 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 > Message delivered to [hidden email] > > ----- > No virus found in this message. > Checked by AVG - www.avg.com > Version: 2015.0.6140 / Virus Database: 4435/10742 - Release Date: 10/02/15 ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Fred Townsend-2
Fred et al:
I would agree. When used with decent power cables, good connectors properly applied and overall length of 4 ft or so, remote sensing will likely bring more issues to the table than necessary. Additional wiring, additional connectors and filtering required to keep RF out and the overall system stable. Now if one has to run DC power 20 to 30 ft then remote sensing is most likely necessary. 73 Bob, K4TAX On 10/2/2015 2:54 PM, Fred Townsend wrote: > Joe, I am familiar with Kelvin sensing, otherwise known as 4 wire or remote sensing. Its advantages are probably outweighed by the risks of misconnecting and filtering needed for RF environments. With <4 feet of 10 ga wire I don't see significant voltage drops. I prefer KISS. > 73 > Fred, AE6QL ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by alsopb
To me the real solution is to incorporate an internal power supply. I
agree that higher PA voltages will produce cleaner transmitters. Therefore multiple voltages, no problem, minimized ground loop issues, reduce number of cables. Only one box to transport as opposed to two. No extra cables to forget or have a cable with wrong connectors. I recall reading recently about a fellow that connected his radio in a reverse polarity condition. With an internal PS, this wouldn't occur. Since we have to have a PS after all, why not just make it internal. 73 Bob, K4TAX On 10/2/2015 3:12 PM, brian wrote: > Fred, > I'm a fan of higher voltage -- perhaps 24 or 40 volts so that PA > transistors can produce cleaner signals. Doing so reduces any IR > drop on power supply wiring by a factor of 2 or 3. KISS. > > IC's are going to lower and lower voltages. Multiple circuits > within boxes require a menagerie of voltages. One is faced with > having to generate more heat in regulators dropping 40 volts to 12, > maybe 5, 3.3 and 1.6 V. Perhaps the era of efficient multivoltage > power supplies with multiple wires for multiple voltages will > return. (Remember filament ,plate, screen and grid voltage power > supplies in days of yore? Guys generally didn't mistakenly hook up > the 3500 V B+ wire to the filaments......) > > 73 de Brian/K3 ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by alsopb
> Doing so reduces any IR drop on power supply wiring by a factor of 2 > or 3. Higher voltage - 24 or 40 V results in decreasing the voltage drop by a factor or 4 or 9. The voltage drop is a function of current *squared*. 24 or 48 volt finals certainly produce much cleaner signals as the active devices are not likely to be driven into current saturation *or* cutoff in order to reach useful power output where the 12V devices are pushed to the wall to make 100W output. 73, ... Joe, W4TV On 10/2/2015 4:12 PM, brian wrote: > Fred, > I'm a fan of higher voltage -- perhaps 24 or 40 volts so that PA > transistors can produce cleaner signals. Doing so reduces any IR drop > on power supply wiring by a factor of 2 or 3. KISS. > > IC's are going to lower and lower voltages. Multiple circuits within > boxes require a menagerie of voltages. One is faced with having to > generate more heat in regulators dropping 40 volts to 12, maybe 5, 3.3 > and 1.6 V. Perhaps the era of efficient multivoltage power supplies > with multiple wires for multiple voltages will return. (Remember > filament ,plate, screen and grid voltage power supplies in days of > yore? Guys generally didn't mistakenly hook up the 3500 V B+ wire to > the filaments......) > > 73 de Brian/K3KO > > 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 Message delivered to [hidden email] |
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We're hitting the posting limit on this one. Let's wind it down in the next 3-4
posts at most. Then thread closed for now. Eric /elecraft.com/ On 10/2/2015 4:32 PM, Joe Subich, W4TV wrote: > >> Doing so reduces any IR drop on power supply wiring by a factor of 2 >> or 3. > > Higher voltage - 24 or 40 V results in decreasing the voltage drop by a > factor or 4 or 9. The voltage drop is a function of current *squared*. > > 24 or 48 volt finals certainly produce much cleaner signals as the > active devices are not likely to be driven into current saturation > *or* cutoff in order to reach useful power output where the 12V devices > are pushed to the wall to make 100W output. > > 73, > > ... Joe, W4TV > > > On 10/2/2015 4:12 PM, brian wrote: >> Fred, >> I'm a fan of higher voltage -- perhaps 24 or 40 volts so that PA >> transistors can produce cleaner signals. Doing so reduces any IR drop >> on power supply wiring by a factor of 2 or 3. KISS. >> >> IC's are going to lower and lower voltages. Multiple circuits within >> boxes require a menagerie of voltages. One is faced with having to >> generate more heat in regulators dropping 40 volts to 12, maybe 5, 3.3 >> and 1.6 V. Perhaps the era of efficient multivoltage power supplies >> with multiple wires for multiple voltages will return. (Remember >> filament ,plate, screen and grid voltage power supplies in days of >> yore? Guys generally didn't mistakenly hook up the 3500 V B+ wire to >> the filaments......) >> >> 73 de Brian/K3KO >> >> > ______________________________________________________________ > 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 > Message delivered to [hidden email] > ______________________________________________________________ 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 Message delivered to [hidden email] |
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In reply to this post by Bob McGraw - K4TAX
As I run my K3 from batteries at home, and am about to run in
from batteries in Sierra county for the California QSO party -- no generators permitted where we are. I need battery power for my normal operations. If higher voltages are needed to clean up the amp, how about a DC to DC converter. 73 Bill AE6JV On 10/2/15 at 2:10 PM, [hidden email] (Bob McGraw - K4TAX) wrote: >To me the real solution is to incorporate an internal power supply. ------------------------------------------------------------------------- Bill Frantz | Re: Hardware Management Modes: | Periwinkle (408)356-8506 | If there's a mode, there's a | 16345 Englewood Ave www.pwpconsult.com | failure mode. - Jerry Leichter | Los Gatos, CA 95032 ______________________________________________________________ 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 Message delivered to [hidden email] |
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> If higher voltages are needed to clean up the amp, how about a DC to > DC converter. How about a higher voltage battery system rather than added complexity in the transceiver? 73, ... Joe, W4TV On 10/3/2015 12:54 AM, Bill Frantz wrote: > As I run my K3 from batteries at home, and am about to run in from > batteries in Sierra county for the California QSO party -- no generators > permitted where we are. I need battery power for my normal operations. > If higher voltages are needed to clean up the amp, how about a DC to DC > converter. > > 73 Bill AE6JV > > On 10/2/15 at 2:10 PM, [hidden email] (Bob McGraw - K4TAX) wrote: > >> To me the real solution is to incorporate an internal power supply. > ------------------------------------------------------------------------- > Bill Frantz | Re: Hardware Management Modes: | Periwinkle > (408)356-8506 | If there's a mode, there's a | 16345 Englewood Ave > www.pwpconsult.com | failure mode. - Jerry Leichter | Los Gatos, CA 95032 > > ______________________________________________________________ > 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 > Message delivered to [hidden email] > 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 Message delivered to [hidden email] |
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In reply to this post by Bill Frantz
I use a 2 KW pure sine wave DC to AC inverter in our travel trailer.
The 60 Hz THD is less than 3% as measured. I find it works quite nice, handles the necessary equipment including the microwave, starts the compressor on the 5 cu. ft. refrigerator and best of all, it doesn't cause noise on the HF transceiver. One does have to be mindful of power management. The transceiver does connect direct to the 12V battery system. I've not had any experience with DC to DC converters. 73 Bob, K4TAX On 10/2/2015 11:54 PM, Bill Frantz wrote: > As I run my K3 from batteries at home, and am about to run in from > batteries in Sierra county for the California QSO party -- no > generators permitted where we are. I need battery power for my normal > operations. If higher voltages are needed to clean up the amp, how > about a DC to DC converter. > > 73 Bill AE6JV ______________________________________________________________ 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 Message delivered to [hidden email] |
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