Re: [Elecraft] K3 DC Output
Actually, the hardest part of installing that change is removing the KPA3. Once that is accomplished, the rest of the mod is easy - as Vic said, it is a matter of changing two components. 73, Don W3FPR It isn't necessary to remove the KPA3 at all. A $5 pair of long-reach surgical forceps or hemostats will do the job without unnecessary disturbance to major organs. Remove only the rear fan panel, and then it's easy to reach down behind the KPA3 using the hemostats to remove RFC48 and F2. Lightly clip the hemostats onto the component and then unsolder from underneath. After clearing the holes of solder, use the hemostats again to insert each new component from above. Easy! Hemostats are readily available as craft tools on eBay for only a few $/£/EUR, and the 6-inch straight pattern is probably the first one to buy. 73 from Ian GM3SEK __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 DC Output
The mod kit has a label for the higher current capacity that is used to cover the original one on the K3. I'm guessing new K3s are labeled correctly with the higher available current. Bill AF4B -Original Message- From: Don Wilhelm w3...@embarqmail.com Sent: 12/22/2014 2:17 PM To: Dauer, Edward eda...@law.du.edu; elecraft@mailman.qth.net elecraft@mailman.qth.net Subject: Re: [Elecraft] K3 DC Output Ted, Yes, K3s manufactured after the mod came out do have the 1 amp output rating starting with SN 6588. The Owner's Manual itself has not been updated, but Errata Rev D10-5 dated June 9, 2014 states the places where the manual should be manually updated. 73, Don W3FPR On 12/22/2014 11:55 AM, Dauer, Edward wrote: According to the Manual the K3¹s DC output socket is limited to 0.5 amps, which I understand means it can power a P3 alone but not both a P3 and a PR6-10, nor a P3 with the VGA accessory. I looked through the on-line manual for the mod kit this morning - it looks like major surgery. Did Elecraft incorporate the mod in K3¹s shipped after the mod came out in 2012? My K3 is S/N 7562. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to a...@att.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
[Elecraft] K3 DC Output
According to the Manual the K3¹s DC output socket is limited to 0.5 amps, which I understand means it can power a P3 alone but not both a P3 and a PR6-10, nor a P3 with the VGA accessory. I looked through the on-line manual for the mod kit this morning - it looks like major surgery. Did Elecraft incorporate the mod in K3¹s shipped after the mod came out in 2012? My K3 is S/N 7562. Tnx, Ted, KN1CBR __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 DC Output
Ted, Yes, K3s manufactured after the mod came out do have the 1 amp output rating starting with SN 6588. The Owner's Manual itself has not been updated, but Errata Rev D10-5 dated June 9, 2014 states the places where the manual should be manually updated. 73, Don W3FPR On 12/22/2014 11:55 AM, Dauer, Edward wrote: According to the Manual the K3¹s DC output socket is limited to 0.5 amps, which I understand means it can power a P3 alone but not both a P3 and a PR6-10, nor a P3 with the VGA accessory. I looked through the on-line manual for the mod kit this morning - it looks like major surgery. Did Elecraft incorporate the mod in K3¹s shipped after the mod came out in 2012? My K3 is S/N 7562. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 DC Output
Even if you had an older K3, it's very minor surgery. It's been some time since I modified my K3 (serial no. 7) but I think it involved the replacement of two components. On 22 Dec 2014 18:55, Dauer, Edward wrote: According to the Manual the K3¹s DC output socket is limited to 0.5 amps, which I understand means it can power a P3 alone but not both a P3 and a PR6-10, nor a P3 with the VGA accessory. I looked through the on-line manual for the mod kit this morning - it looks like major surgery. Did Elecraft incorporate the mod in K3¹s shipped after the mod came out in 2012? My K3 is S/N 7562. Tnx, Ted, KN1CBR -- 73, Vic, 4X6GP/K2VCO Rehovot, Israel http://www.qsl.net/k2vco/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 DC Output
Actually, the hardest part of installing that change is removing the KPA3. Once that is accomplished, the rest of the mod is easy - as Vic said, it is a matter of changing two components. 73, Don W3FPR On 12/22/2014 3:40 PM, Vic Rosenthal 4X6GP/K2VCO wrote: Even if you had an older K3, it's very minor surgery. It's been some time since I modified my K3 (serial no. 7) but I think it involved the replacement of two components. On 22 Dec 2014 18:55, Dauer, Edward wrote: According to the Manual the K3¹s DC output socket is limited to 0.5 amps, which I understand means it can power a P3 alone but not both a P3 and a PR6-10, nor a P3 with the VGA accessory. I looked through the on-line manual for the mod kit this morning - it looks like major surgery. Did Elecraft incorporate the mod in K3¹s shipped after the mod came out in 2012? My K3 is S/N 7562. __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] K3 DC output jack fuse
Doug, N6TQS wrote: I like the APP for the main power connector on the K3, but having the 12VDC OUT and the PTT IN connector the same seems a Murphy-proofing fail. The fuse is very likely to fail before the device that's supposed to drive PTT IN, but Where is that fuse, anyway? Sorry for the late reply, Doug. Assuming your are asking about F2, the PTC fuse for the 12vDC out jack, it is on the main board, directly beside the 12V out connector. You can see it here: http://home.myfairpoint.net/vze1t5sc/UR_top_RF_bd.jpg -Bruce, N1RX __ 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] K3 DC output jack fuse
Thanks. If it's a PTC fuse, at least it won't require replacing, OTOH, it's not going to protect the external switching device quite as well. In the other direction, it does look as if there'd be no problem if the power connector for the P3 or PR6 is plugged into the PTT IN or KEY OUT RCA jacks. 73, doug On 26-Mar-11 10:31, Bruce Beford wrote: Doug, N6TQS wrote: I like the APP for the main power connector on the K3, but having the 12VDC OUT and the PTT IN connector the same seems a Murphy-proofing fail. The fuse is very likely to fail before the device that's supposed to drive PTT IN, but Where is that fuse, anyway? Sorry for the late reply, Doug. Assuming your are asking about F2, the PTC fuse for the 12vDC out jack, it is on the main board, directly beside the 12V out connector. You can see it here: http://home.myfairpoint.net/vze1t5sc/UR_top_RF_bd.jpg -Bruce, N1RX __ 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
