[Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S
Hi all you KX3 guys, After Chuck, KE9UW posted the link to this little 14 volt supply on eBay, I ordered one and said I'd report back after it came in. Got it this morning and measured the output voltage. Mine sits right at 13.8 volts, so I immediately hooked it up to the KX3. Full load with the KX3 key down putting out 12 watts, the thing sits pretty much rock solid at 13.6 and key up it goes back to 13.8 and stays there so it's got good regulation and will handle the rig nicely. The power cord is ferrite choked right where it comes out of the supply and the plug, even though it isn't a right angle one, fits the KX3's power jack perfectly. Next, I started looking for birdies using the KX3 with a 4 pickup loop I made with a BNC to double binding post adapter. The P/S box has an LED indicator on it and with the loop laid on the case near the LED, I got some pretty loud broadband noise that covered everything from 160-6 meters, but fell off and was undetectable with the loop 4 inches from the box. I ran through each band individually and could find no birdies attributable to this power supply in any ham band 160-6 meters. This was confirmed by shutting the supply down whenever I found noise or carrier type birdies and they stayed where they were. For less than 9 bucks this supply appears to be really pretty decent to carry along. It has at least a 3 foot AC cord that plugs into the box and the output cord is very close to 5 feet long so you have a lot of leeway in P/S placement. According to the specs shown on eBay, it has both over current and over voltage protection. I didn't short out the plug to find out if it shut down would blow an internal fuse as the supply is sealed and I didn't want to chance ruining it before getting a chance to take it on a trip. I've been using it this morning to power the KX3 on the bench and hanging out around 14.060 looking for QRP contacts. The KX3's voltage monitor is indicating right at 13.8 volts and .250 milliamps of current. Backlight is on, audio set to 20 with VFO noise reduction on, RX isolation on and the 20db preamp is on so 250 milliamps is just about right for current draw at 13.8V. Pretty decent lilttle supply for the money and RF wise, it's extremely quiet compared to some I've seen. Jim - W0EB I use this one...14 volts, 4 amps. The plug on it fits the KX3 and the open ckt voltage is 14 vdc exactly. http://www.ebay.com/itm/KSAS065-65W-Adapter-power-supply-Output- 14Vdc-4A-2-1mm-plug-NEW-FREE-SHIP- /261135859531?pt=US_Monitor_Power_Supplieshash=item3ccce8ff4b Chuck, KE9UW Lionel Trains, TCA, LCCA, LRRC aka Jack, BMW Motorcycles BMWMOA #224 __ 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
Re: [Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S
Most in this class of PSU use PTCs, not fuses. 73, matt W6NIA On Sat, 22 Dec 2012 13:08:27 -0600, you wrote: Hi all you KX3 guys, After Chuck, KE9UW posted the link to this little 14 volt supply on eBay, I ordered one and said I'd report back after it came in. Got it this morning and measured the output voltage. Mine sits right at 13.8 volts, so I immediately hooked it up to the KX3. Full load with the KX3 key down putting out 12 watts, the thing sits pretty much rock solid at 13.6 and key up it goes back to 13.8 and stays there so it's got good regulation and will handle the rig nicely. The power cord is ferrite choked right where it comes out of the supply and the plug, even though it isn't a right angle one, fits the KX3's power jack perfectly. Next, I started looking for birdies using the KX3 with a 4 pickup loop I made with a BNC to double binding post adapter. The P/S box has an LED indicator on it and with the loop laid on the case near the LED, I got some pretty loud broadband noise that covered everything from 160-6 meters, but fell off and was undetectable with the loop 4 inches from the box. I ran through each band individually and could find no birdies attributable to this power supply in any ham band 160-6 meters. This was confirmed by shutting the supply down whenever I found noise or carrier type birdies and they stayed where they were. For less than 9 bucks this supply appears to be really pretty decent to carry along. It has at least a 3 foot AC cord that plugs into the box and the output cord is very close to 5 feet long so you have a lot of leeway in P/S placement. According to the specs shown on eBay, it has both over current and over voltage protection. I didn't short out the plug to find out if it shut down would blow an internal fuse as the supply is sealed and I didn't want to chance ruining it before getting a chance to take it on a trip. I've been using it this morning to power the KX3 on the bench and hanging out around 14.060 looking for QRP contacts. The KX3's voltage monitor is indicating right at 13.8 volts and .250 milliamps of current. Backlight is on, audio set to 20 with VFO noise reduction on, RX isolation on and the 20db preamp is on so 250 milliamps is just about right for current draw at 13.8V. Pretty decent lilttle supply for the money and RF wise, it's extremely quiet compared to some I've seen. Jim - W0EB I use this one...14 volts, 4 amps. The plug on it fits the KX3 and the open ckt voltage is 14 vdc exactly. http://www.ebay.com/itm/KSAS065-65W-Adapter-power-supply-Output- 14Vdc-4A-2-1mm-plug-NEW-FREE-SHIP- /261135859531?pt=US_Monitor_Power_Supplieshash=item3ccce8ff4b Chuck, KE9UW Lionel Trains, TCA, LCCA, LRRC aka Jack, BMW Motorcycles BMWMOA #224 __ 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 __ 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
Re: [Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S
And they're sold out. John T. Gwin jtg...@comcast.net judgejohng...@wilsoncountytn.com - Original Message - From: Matt Zilmer mzil...@verizon.net To: Jim Sheldon w...@cox.net Cc: Elecraft Mailing List elecraft@mailman.qth.net Sent: Saturday, December 22, 2012 2:05 PM Subject: Re: [Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S Most in this class of PSU use PTCs, not fuses. 73, matt W6NIA On Sat, 22 Dec 2012 13:08:27 -0600, you wrote: Hi all you KX3 guys, After Chuck, KE9UW posted the link to this little 14 volt supply on eBay, I ordered one and said I'd report back after it came in. Got it this morning and measured the output voltage. Mine sits right at 13.8 volts, so I immediately hooked it up to the KX3. Full load with the KX3 key down putting out 12 watts, the thing sits pretty much rock solid at 13.6 and key up it goes back to 13.8 and stays there so it's got good regulation and will handle the rig nicely. The power cord is ferrite choked right where it comes out of the supply and the plug, even though it isn't a right angle one, fits the KX3's power jack perfectly. Next, I started looking for birdies using the KX3 with a 4 pickup loop I made with a BNC to double binding post adapter. The P/S box has an LED indicator on it and with the loop laid on the case near the LED, I got some pretty loud broadband noise that covered everything from 160-6 meters, but fell off and was undetectable with the loop 4 inches from the box. I ran through each band individually and could find no birdies attributable to this power supply in any ham band 160-6 meters. This was confirmed by shutting the supply down whenever I found noise or carrier type birdies and they stayed where they were. For less than 9 bucks this supply appears to be really pretty decent to carry along. It has at least a 3 foot AC cord that plugs into the box and the output cord is very close to 5 feet long so you have a lot of leeway in P/S placement. According to the specs shown on eBay, it has both over current and over voltage protection. I didn't short out the plug to find out if it shut down would blow an internal fuse as the supply is sealed and I didn't want to chance ruining it before getting a chance to take it on a trip. I've been using it this morning to power the KX3 on the bench and hanging out around 14.060 looking for QRP contacts. The KX3's voltage monitor is indicating right at 13.8 volts and .250 milliamps of current. Backlight is on, audio set to 20 with VFO noise reduction on, RX isolation on and the 20db preamp is on so 250 milliamps is just about right for current draw at 13.8V. Pretty decent lilttle supply for the money and RF wise, it's extremely quiet compared to some I've seen. Jim - W0EB I use this one...14 volts, 4 amps. The plug on it fits the KX3 and the open ckt voltage is 14 vdc exactly. http://www.ebay.com/itm/KSAS065-65W-Adapter-power-supply-Output- 14Vdc-4A-2-1mm-plug-NEW-FREE-SHIP- /261135859531?pt=US_Monitor_Power_Supplieshash=item3ccce8ff4b Chuck, KE9UW Lionel Trains, TCA, LCCA, LRRC aka Jack, BMW Motorcycles BMWMOA #224 __ 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 __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2637/5478 - Release Date: 12/22/12 __ 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
Re: [Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S
Dell makes a AD-4214N power supply that is about the same thing... that you can find at the flea markets for almost nothing... Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ Owner - Operator Big Signal Ranch Staunton, Illinois email: b...@wjschmidt.com -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of W4SK Sent: Saturday, December 22, 2012 3:25 PM To: mzil...@verizon.net; Jim Sheldon Cc: Elecraft Mailing List Subject: Re: [Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S And they're sold out. John T. Gwin jtg...@comcast.net judgejohng...@wilsoncountytn.com - Original Message - From: Matt Zilmer mzil...@verizon.net To: Jim Sheldon w...@cox.net Cc: Elecraft Mailing List elecraft@mailman.qth.net Sent: Saturday, December 22, 2012 2:05 PM Subject: Re: [Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S Most in this class of PSU use PTCs, not fuses. 73, matt W6NIA On Sat, 22 Dec 2012 13:08:27 -0600, you wrote: Hi all you KX3 guys, After Chuck, KE9UW posted the link to this little 14 volt supply on eBay, I ordered one and said I'd report back after it came in. Got it this morning and measured the output voltage. Mine sits right at 13.8 volts, so I immediately hooked it up to the KX3. Full load with the KX3 key down putting out 12 watts, the thing sits pretty much rock solid at 13.6 and key up it goes back to 13.8 and stays there so it's got good regulation and will handle the rig nicely. The power cord is ferrite choked right where it comes out of the supply and the plug, even though it isn't a right angle one, fits the KX3's power jack perfectly. Next, I started looking for birdies using the KX3 with a 4 pickup loop I made with a BNC to double binding post adapter. The P/S box has an LED indicator on it and with the loop laid on the case near the LED, I got some pretty loud broadband noise that covered everything from 160-6 meters, but fell off and was undetectable with the loop 4 inches from the box. I ran through each band individually and could find no birdies attributable to this power supply in any ham band 160-6 meters. This was confirmed by shutting the supply down whenever I found noise or carrier type birdies and they stayed where they were. For less than 9 bucks this supply appears to be really pretty decent to carry along. It has at least a 3 foot AC cord that plugs into the box and the output cord is very close to 5 feet long so you have a lot of leeway in P/S placement. According to the specs shown on eBay, it has both over current and over voltage protection. I didn't short out the plug to find out if it shut down would blow an internal fuse as the supply is sealed and I didn't want to chance ruining it before getting a chance to take it on a trip. I've been using it this morning to power the KX3 on the bench and hanging out around 14.060 looking for QRP contacts. The KX3's voltage monitor is indicating right at 13.8 volts and .250 milliamps of current. Backlight is on, audio set to 20 with VFO noise reduction on, RX isolation on and the 20db preamp is on so 250 milliamps is just about right for current draw at 13.8V. Pretty decent lilttle supply for the money and RF wise, it's extremely quiet compared to some I've seen. Jim - W0EB I use this one...14 volts, 4 amps. The plug on it fits the KX3 and the open ckt voltage is 14 vdc exactly. http://www.ebay.com/itm/KSAS065-65W-Adapter-power-supply-Output- 14Vdc-4A-2-1mm-plug-NEW-FREE-SHIP- /261135859531?pt=US_Monitor_Power_Supplieshash=item3ccce8ff4b Chuck, KE9UW Lionel Trains, TCA, LCCA, LRRC aka Jack, BMW Motorcycles BMWMOA #224 __ 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 __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2637/5478 - Release Date: 12/22/12 __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2805 / Virus Database: 2637
Re: [Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S
Yup, it's a power supply that works with some Dell and Samsung monitors. Might be identical to the Ktec supply I got off ebay - pretty much same specs. Since it's meant to power a computer monitor, I'd bet it's pretty quiet in the RFI department as well. Look up Dell AD-4214N on Google and you'll get a host of replacement ones. Cheapest one I saw in the new department was $19 but like Bill said, you can probably find one at a ham (or other) flea market for next to nothing. W0EB Dell makes a AD-4214N power supply that is about the same thing... that you can find at the flea markets for almost nothing... Dr. William J. Schmidt - K9HZ / J68HZ/ 8P6HK/ ZF2HZ Owner - Operator Big Signal Ranch Staunton, Illinois email: b...@wjschmidt.com -Original Message- From: elecraft-boun...@mailman.qth.net [mailto:elecraft-boun...@mailman.qth.net] On Behalf Of W4SK Sent: Saturday, December 22, 2012 3:25 PM To: mzil...@verizon.net; Jim Sheldon Cc: Elecraft Mailing List Subject: Re: [Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S And they're sold out. John T. Gwin jtg...@comcast.net judgejohng...@wilsoncountytn.com - Original Message - From: Matt Zilmer mzil...@verizon.net To: Jim Sheldon w...@cox.net Cc: Elecraft Mailing List elecraft@mailman.qth.net Sent: Saturday, December 22, 2012 2:05 PM Subject: Re: [Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S Most in this class of PSU use PTCs, not fuses. 73, matt W6NIA On Sat, 22 Dec 2012 13:08:27 -0600, you wrote: Hi all you KX3 guys, After Chuck, KE9UW posted the link to this little 14 volt supply on eBay, I ordered one and said I'd report back after it came in. Got it this morning and measured the output voltage. Mine sits right at 13.8 volts, so I immediately hooked it up to the KX3. Full load with the KX3 key down putting out 12 watts, the thing sits pretty much rock solid at 13.6 and key up it goes back to 13.8 and stays there so it's got good regulation and will handle the rig nicely. The power cord is ferrite choked right where it comes out of the supply and the plug, even though it isn't a right angle one, fits the KX3's power jack perfectly. Next, I started looking for birdies using the KX3 with a 4 pickup loop I made with a BNC to double binding post adapter. The P/S box has an LED indicator on it and with the loop laid on the case near the LED, I got some pretty loud broadband noise that covered everything from 160-6 meters, but fell off and was undetectable with the loop 4 inches from the box. I ran through each band individually and could find no birdies attributable to this power supply in any ham band 160-6 meters. This was confirmed by shutting the supply down whenever I found noise or carrier type birdies and they stayed where they were. For less than 9 bucks this supply appears to be really pretty decent to carry along. It has at least a 3 foot AC cord that plugs into the box and the output cord is very close to 5 feet long so you have a lot of leeway in P/S placement. According to the specs shown on eBay, it has both over current and over voltage protection. I didn't short out the plug to find out if it shut down would blow an internal fuse as the supply is sealed and I didn't want to chance ruining it before getting a chance to take it on a trip. I've been using it this morning to power the KX3 on the bench and hanging out around 14.060 looking for QRP contacts. The KX3's voltage monitor is indicating right at 13.8 volts and .250 milliamps of current. Backlight is on, audio set to 20 with VFO noise reduction on, RX isolation on and the 20db preamp is on so 250 milliamps is just about right for current draw at 13.8V. Pretty decent lilttle supply for the money and RF wise, it's extremely quiet compared to some I've seen. Jim - W0EB I use this one...14 volts, 4 amps. The plug on it fits the KX3 and the open ckt voltage is 14 vdc exactly. http://www.ebay.com/itm/KSAS065-65W-Adapter-power-supply- Output- 14Vdc-4A-2-1mm-plug-NEW-FREE-SHIP- /261135859531?pt=US_Monitor_Power_Supplieshash=item3ccce8ff4b Chuck, KE9UW Lionel Trains, TCA, LCCA, LRRC aka Jack, BMW Motorcycles BMWMOA #224 __ 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 __ 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 - No virus found
Re: [Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S
I bought one about five minutes after that post arrived today. Fits well in my KX3 travel pack. Keith AK6ZZ Sent from my iPhone please excuse typos On Dec 22, 2012, at 1:25 PM, W4SK w...@comcast.net wrote: And they're sold out. John T. Gwin jtg...@comcast.net judgejohng...@wilsoncountytn.com - Original Message - From: Matt Zilmer mzil...@verizon.net To: Jim Sheldon w...@cox.net Cc: Elecraft Mailing List elecraft@mailman.qth.net Sent: Saturday, December 22, 2012 2:05 PM Subject: Re: [Elecraft] KX3 - inexpensive - 14 volt @ 4 amp P/S Most in this class of PSU use PTCs, not fuses. 73, matt W6NIA On Sat, 22 Dec 2012 13:08:27 -0600, you wrote: Hi all you KX3 guys, After Chuck, KE9UW posted the link to this little 14 volt supply on eBay, I ordered one and said I'd report back after it came in. Got it this morning and measured the output voltage. Mine sits right at 13.8 volts, so I immediately hooked it up to the KX3. Full load with the KX3 key down putting out 12 watts, the thing sits pretty much rock solid at 13.6 and key up it goes back to 13.8 and stays there so it's got good regulation and will handle the rig nicely. The power cord is ferrite choked right where it comes out of the supply and the plug, even though it isn't a right angle one, fits the KX3's power jack perfectly. Next, I started looking for birdies using the KX3 with a 4 pickup loop I made with a BNC to double binding post adapter. The P/S box has an LED indicator on it and with the loop laid on the case near the LED, I got some pretty loud broadband noise that covered everything from 160-6 meters, but fell off and was undetectable with the loop 4 inches from the box. I ran through each band individually and could find no birdies attributable to this power supply in any ham band 160-6 meters. This was confirmed by shutting the supply down whenever I found noise or carrier type birdies and they stayed where they were. For less than 9 bucks this supply appears to be really pretty decent to carry along. It has at least a 3 foot AC cord that plugs into the box and the output cord is very close to 5 feet long so you have a lot of leeway in P/S placement. According to the specs shown on eBay, it has both over current and over voltage protection. I didn't short out the plug to find out if it shut down would blow an internal fuse as the supply is sealed and I didn't want to chance ruining it before getting a chance to take it on a trip. I've been using it this morning to power the KX3 on the bench and hanging out around 14.060 looking for QRP contacts. The KX3's voltage monitor is indicating right at 13.8 volts and .250 milliamps of current. Backlight is on, audio set to 20 with VFO noise reduction on, RX isolation on and the 20db preamp is on so 250 milliamps is just about right for current draw at 13.8V. Pretty decent lilttle supply for the money and RF wise, it's extremely quiet compared to some I've seen. Jim - W0EB I use this one...14 volts, 4 amps. The plug on it fits the KX3 and the open ckt voltage is 14 vdc exactly. http://www.ebay.com/itm/KSAS065-65W-Adapter-power-supply-Output- 14Vdc-4A-2-1mm-plug-NEW-FREE-SHIP- /261135859531?pt=US_Monitor_Power_Supplieshash=item3ccce8ff4b Chuck, KE9UW Lionel Trains, TCA, LCCA, LRRC aka Jack, BMW Motorcycles BMWMOA #224 __ 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 __ 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 - No virus found in this message. Checked by AVG - www.avg.com Version: 2012.0.2221 / Virus Database: 2637/5478 - Release Date: 12/22/12 __ 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 __ 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
