Re: [Elecraft] New K2 Build w/ Options
All, Thanks for the replies (and several direct emails I received). It sounds like it's much easier now than it was when the K2 was first introduced. Thanks again. -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New K2 Build w/ Options
It is also very easy to make plug-in equivalents of the rework modules. In fact that’s where they started. And as said here, they will just contain jumpers or a couple of components. See http://la3za.blogspot.com/p/la3za-unofficial-guide-to-elecraft-k2_28.html#Access - Sverre, LA3ZA K2 #2198, K3 #3391, LA3ZA Blog: http://la3za.blogspot.com, LA3ZA Unofficial Guide to K2 modifications: http://la3za.blogspot.com/p/la3za-unofficial-guide-to-elecraft-k2.html -- Sent from: http://elecraft.365791.n2.nabble.com/ __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New K2 Build w/ Options
On 8/15/2019 12:00 PM, W0CD wrote: Good afternoon. I just received a new K2 kit from Elecraft (#7899). It includes all available options for the K2/100 (amp, audio filter, 60m, SSB, etc.). I understand adding these components after the K2 is built will require a bit of rework to be completed. Is this true if you are building the entire kit, with accessories, from scratch? I noticed the rework boards are no longer available and I want to be sure I eliminate as much rework as possible (if possible). In other words, are there any accessories / addons I should be installing at the time of the K2 build -- or do I complete the base K2 first before moving on. When I built mine, I built the option kits first, which got me familiar the assembly manuals, then I built the main kit, including the various connectors for the options, some of which needed temporary jumpers, where I used pushon jumper thingies. It also involved a lot of perusing, and cross-referencing, the manuals. Once the main radio was finished and tested, then I added (plugged in) the option boards, one at a time, testing everything as I went. It all worked spendidly. The only parts that I needed to add to the main radio at the time I built it were the connectors for the options, which were included in the options kits, and some temporary jumpers. -- Jim Fuller N5XH __ 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] New K2 Build w/ Options
James, The amount of "rework" is minimal. There are ways to avoid doing as much component removal and changes, but I would not recommend that you do it on your initial kit build. If you were to build a 2nd K2 (after installing the various options once), then I can see you reviewing the installation steps for the options and doing those things as you build the K2, but for the first time, build the base K2, do the alignment and test, and then add the options. To help set your mind at ease, the components that you will need to remove for each of the options is as follows: KPA100 -- none K160RX -- none KXV60 -- remove two capacitors KAF2 -- remove two wires on the back of the control board KNB2 -- change 3 resistors KSB2 -- remove one capacitor So IMHO, the "rework" is minimal. Most of the work for installation of the options is adds to the RF Board. For older K2s (below SN 3000), there is a bit more rework, but not for yours. The hardest part of removing components from the boards is removing the solder from the holes. You can even waste the component to be removed and pull the leads out one at a time. Clean up the solder pads with solder wick, and if solder remains in the holes, heat the pad and push the solder out with a wooden toothpick so you can insert the new component or header. 73, Don W3FPR On 8/15/2019 1:00 PM, W0CD wrote: Good afternoon. I just received a new K2 kit from Elecraft (#7899). It includes all available options for the K2/100 (amp, audio filter, 60m, SSB, etc.). I understand adding these components after the K2 is built will require a bit of rework to be completed. Is this true if you are building the entire kit, with accessories, from scratch? I noticed the rework boards are no longer available and I want to be sure I eliminate as much rework as possible (if possible). __ 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] New K2 Build
Oh, No! Say it isn't so, Don! Sorry to hear this news. It's been about a generation of your supporting hams with their legacy Elecraft radi!os through builds, upgrades, and repairs. I'm glad I got my K2 A-to-B upgrade from you before this decision. I wish you many more years of helpful activity on the reflector. 73 Jay K3BH On Mon, Jan 21, 2019, at 18:36, Don Wilhelm wrote: > I can no longer work as fast because of hand tremors. It has gotten bad > enough that I have decided not to take on any new build or repair jobs. __ 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] New K2 Build
Bill, My real advantage is that I no longer have to read in detail to follow the assembly steps, but if you are doing it for the first time, do read carefully and completely as you are working. My first one (Field Test) took me 34 hours. There is no shame in taking 60 hours or more to build a K2 - proceed at your own comfortable pace, it is not a race, and going faster often leads to extended troubleshooting or an expensive repair because of build errors. I can no longer work as fast because of hand tremors. It has gotten bad enough that I have decided not to take on any new build or repair jobs. I will be continuing to provide support on this reflector. Yes, it is a part of getting older! 73, Don W3FPR On 1/21/2019 6:24 PM, Bill Johnson wrote: I think so. Wayne thought I may have a record for the shortest build @ 26 hours. But I think Don would easily beat that with all his experience and skills. We have both concurred, however, that with the time that has passed neither of us have the speed of the 1990's. Such is aging. __ 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] New K2 Build
I think so. Wayne thought I may have a record for the shortest build @ 26 hours. But I think Don would easily beat that with all his experience and skills. We have both concurred, however, that with the time that has passed neither of us have the speed of the 1990's. Such is aging. 73, Bill K9YEQ https://wrj-tech.com/ -Original Message- From: elecraft-boun...@mailman.qth.net On Behalf Of Dauer, Edward Sent: Monday, January 21, 2019 12:37 PM To: hawley, charles j jr Cc: elecraft@mailman.qth.net Subject: Re: [Elecraft] New K2 Build I wonder if 11 years is a record? Ted, KN1CBR On 1/21/19, 9:03 AM, "hawley, charles j jr" wrote: I did one K2... started in ‘99 and finished in 2010. There was an addition to the house and a move of the shack in between. I had to write my own assembly manual to include all the mods, changes, and accessories. Worked when I turned it on. No reworks. I like the sound better than the K3. Chuck KE9UW Sent from my iPhone, cjack > On Jan 21, 2019, at 8:55 AM, Dauer, Edward wrote: > > Hello Bruce -- > > I have built three K2s, with almost every accessory and option there is other than the transverters. I agree with all who have advised that the K2 be finished first and, except for the indicated KSB2 bits, then do the add-ons later. My reason for doing it that way was to be able to troubleshoot problems if any emerge. Having the options in would have complicated that for me. So I built the K2, tested and aligned, and then added each option, testing as I went along. > > The rework isn't difficult. And if you enjoy building a kit like this - which you will - doing that is just more of the fun. If you don't already have one, buy a solder sucker. The hand-held spring-loaded vacuum types are inexpensive and help greatly to clean out through-holes when something is removed. Hakko sells one for about 18 USD. > > Ted, KN1CBR > > > -- > >Message: 7 >Date: Sun, 20 Jan 2019 18:32:07 + >From: Bruce McCartney >To: elecraft@mailman.qth.net >Subject: [Elecraft] New K2 build >Message-ID: >Content-Type: text/plain;charset=utf-8 > >I have taken advantage of Elecraft?s National Hobby Month offer and now have a K2 plus KSB2 SSB Option, KNB2 Noise Blanker, KAT2 20W Internal ATU to build. > >My query is: do I build first the K2 transceiver as CW only, then add in the options as completed? > >From reading the manuals, components have to be removed from the completed K2 before the addition of some options. It seems a shame to undo work. > >Old blogs mention a Rework Eliminator kit which would have been a solution to my dilemma, but these are long since discontinued. > >So, do I build first and add options later? I'd be pleased to hear from other K2 builders. > >I must add a huge kudos to both Elecraft and UPS - California to Scotland - 46 hours from ordering to delivery! What service! > >Thank you. > >Bruce > >GM4BDJ > >-- > > > __ > 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 c-haw...@illinois.edu __ 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 k9...@live.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New K2 build
Bruce, I built mine in 2001, and as far as I remember I had the same situation with the options. Since you have the options, sneak-preview into them and read what and how the parts have to be removed. Then you get an idea how to install them in a way you can removed them without putting harm to the main pcb. One obvious measure is to not push down the resistors or jumpers to the pcb, rather leave some space. Happy building! Gernot DF5RF K2 #2328 (+KAT,KBAT, KSB,KNB,KDSP,KXV60,K160RX,my own buffered IF-out with a Softrock RX Lite attached, my own Keyout) Am 20.01.2019 um 19:32 schrieb Bruce McCartney via Elecraft: I have taken advantage of Elecraft’s National Hobby Month offer and now have a K2 plus KSB2 SSB Option, KNB2 Noise Blanker, KAT2 20W Internal ATU to build. My query is: do I build first the K2 transceiver as CW only, then add in the options as completed? From reading the manuals, components have to be removed from the completed K2 before the addition of some options. It seems a shame to undo work. Old blogs mention a Rework Eliminator kit which would have been a solution to my dilemma, but these are long since discontinued. So, do I build first and add options later? I'd be pleased to hear from other K2 builders. I must add a huge kudos to both Elecraft and UPS - California to Scotland - 46 hours from ordering to delivery! What service! Thank you. Bruce GM4BDJ __ 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 g...@gmx.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New K2 Build
I wonder if 11 years is a record? Ted, KN1CBR On 1/21/19, 9:03 AM, "hawley, charles j jr" wrote: I did one K2... started in ‘99 and finished in 2010. There was an addition to the house and a move of the shack in between. I had to write my own assembly manual to include all the mods, changes, and accessories. Worked when I turned it on. No reworks. I like the sound better than the K3. Chuck KE9UW Sent from my iPhone, cjack > On Jan 21, 2019, at 8:55 AM, Dauer, Edward wrote: > > Hello Bruce -- > > I have built three K2s, with almost every accessory and option there is other than the transverters. I agree with all who have advised that the K2 be finished first and, except for the indicated KSB2 bits, then do the add-ons later. My reason for doing it that way was to be able to troubleshoot problems if any emerge. Having the options in would have complicated that for me. So I built the K2, tested and aligned, and then added each option, testing as I went along. > > The rework isn't difficult. And if you enjoy building a kit like this - which you will - doing that is just more of the fun. If you don't already have one, buy a solder sucker. The hand-held spring-loaded vacuum types are inexpensive and help greatly to clean out through-holes when something is removed. Hakko sells one for about 18 USD. > > Ted, KN1CBR > > > -- > >Message: 7 >Date: Sun, 20 Jan 2019 18:32:07 + >From: Bruce McCartney >To: elecraft@mailman.qth.net >Subject: [Elecraft] New K2 build >Message-ID: >Content-Type: text/plain;charset=utf-8 > >I have taken advantage of Elecraft?s National Hobby Month offer and now have a K2 plus KSB2 SSB Option, KNB2 Noise Blanker, KAT2 20W Internal ATU to build. > >My query is: do I build first the K2 transceiver as CW only, then add in the options as completed? > >From reading the manuals, components have to be removed from the completed K2 before the addition of some options. It seems a shame to undo work. > >Old blogs mention a Rework Eliminator kit which would have been a solution to my dilemma, but these are long since discontinued. > >So, do I build first and add options later? I'd be pleased to hear from other K2 builders. > >I must add a huge kudos to both Elecraft and UPS - California to Scotland - 46 hours from ordering to delivery! What service! > >Thank you. > >Bruce > >GM4BDJ > >-- > > > __ > 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 c-haw...@illinois.edu __ 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] New K2 Build
I did one K2... started in ‘99 and finished in 2010. There was an addition to the house and a move of the shack in between. I had to write my own assembly manual to include all the mods, changes, and accessories. Worked when I turned it on. No reworks. I like the sound better than the K3. Chuck KE9UW Sent from my iPhone, cjack > On Jan 21, 2019, at 8:55 AM, Dauer, Edward wrote: > > Hello Bruce -- > > I have built three K2s, with almost every accessory and option there is other > than the transverters. I agree with all who have advised that the K2 be > finished first and, except for the indicated KSB2 bits, then do the add-ons > later. My reason for doing it that way was to be able to troubleshoot > problems if any emerge. Having the options in would have complicated that > for me. So I built the K2, tested and aligned, and then added each option, > testing as I went along. > > The rework isn't difficult. And if you enjoy building a kit like this - > which you will - doing that is just more of the fun. If you don't already > have one, buy a solder sucker. The hand-held spring-loaded vacuum types are > inexpensive and help greatly to clean out through-holes when something is > removed. Hakko sells one for about 18 USD. > > Ted, KN1CBR > > > -- > >Message: 7 >Date: Sun, 20 Jan 2019 18:32:07 + >From: Bruce McCartney >To: elecraft@mailman.qth.net >Subject: [Elecraft] New K2 build >Message-ID: >Content-Type: text/plain;charset=utf-8 > >I have taken advantage of Elecraft?s National Hobby Month offer and now > have a K2 plus KSB2 SSB Option, KNB2 Noise Blanker, KAT2 20W Internal ATU to > build. > >My query is: do I build first the K2 transceiver as CW only, then add in > the options as completed? > >From reading the manuals, components have to be removed from the completed > K2 before the addition of some options. It seems a shame to undo work. > >Old blogs mention a Rework Eliminator kit which would have been a solution > to my dilemma, but these are long since discontinued. > >So, do I build first and add options later? I'd be pleased to hear from > other K2 builders. > >I must add a huge kudos to both Elecraft and UPS - California to Scotland > - 46 hours from ordering to delivery! What service! > >Thank you. > >Bruce > >GM4BDJ > >-- > > > __ > 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 c-haw...@illinois.edu __ 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] New K2 build
Bruce... Congratulations! Don is the one to answer your specific question(s). I'm just glad for you and the fun you're about to have. It's just a great radio, and I'm sure that, in the end, you will be much more than satisfied with yourself and with the radio. ...robert On 1/20/2019 18:32, Bruce McCartney via Elecraft wrote: I have taken advantage of Elecraft’s National Hobby Month offer and now have a K2 plus KSB2 SSB Option, KNB2 Noise Blanker, KAT2 20W Internal ATU to build. My query is: do I build first the K2 transceiver as CW only, then add in the options as completed? From reading the manuals, components have to be removed from the completed K2 before the addition of some options. It seems a shame to undo work. Old blogs mention a Rework Eliminator kit which would have been a solution to my dilemma, but these are long since discontinued. So, do I build first and add options later? I'd be pleased to hear from other K2 builders. I must add a huge kudos to both Elecraft and UPS - California to Scotland - 46 hours from ordering to delivery! What service! Thank you. Bruce GM4BDJ __ 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 rc...@verizon.net -- Robert G Strickland, PhD ABPH - KE2WY rc...@verizon.net.usa Syracuse, New York, USA __ 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] New K2 build
Bruce, Yes, build the K2 first - there is a point where the manual tells you that you can add such things as the Front Panel components for the KSB2, and headers for other options. Do NOT attempt to add parts of the K60XV option until you have finished building and testing the basic K2. There are not really many parts to remove - C167 for the KSB2 plus 2 jumpers (which can be cut if you prefer. For the K160RX only a jumper removal and the addition of 3 capacitors. For the KNB2, one jumper and remove 3 resistors. The KAF2 requires only 2 jumpers to be removed (those cannot be cut), and the K60XV requires only the removal and replacement of one capacitor. You must have done something to expedite that order - UPS Ground delivery here in the US is usually 5 to 7 days unless it is to the same state or one adjacent where the delivery is next day to 3 days. 73, Don W3FPR On 1/20/2019 1:32 PM, Bruce McCartney via Elecraft wrote: I have taken advantage of Elecraft’s National Hobby Month offer and now have a K2 plus KSB2 SSB Option, KNB2 Noise Blanker, KAT2 20W Internal ATU to build. My query is: do I build first the K2 transceiver as CW only, then add in the options as completed? From reading the manuals, components have to be removed from the completed K2 before the addition of some options. It seems a shame to undo work. Old blogs mention a Rework Eliminator kit which would have been a solution to my dilemma, but these are long since discontinued. So, do I build first and add options later? I'd be pleased to hear from other K2 builders. I must add a huge kudos to both Elecraft and UPS - California to Scotland - 46 hours from ordering to delivery! What service! __ 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] New K2 build
Hi Bruce, You're gonna' love building this kit! I just finished my 3rd one, plus the 100 W amp and tuner, and I have been having a lot of fun with it the last week or so. Yes, you want to build the basic cw kit first, then add options but if you read the SSB kit's manual (and the others), it shows you where you can add a few components during the initial build, so a ton of rework isn't necessary when you want to add SSB. The rework eliminators were a nice addition, but not necessary. I used them on the first one, but not this time. I've finally finished and installed all of the K2's options, and there was no complicated rework for any of them - that was my experience, anyway. There is great support on this list, and at least in my experience, nobody will criticize you for dumb questions - at least in public ;) Enjoy, and don't be shy about asking for help. 73, Jim KO5V Edgewood, NM "I have taken advantage of Elecraft’s National Hobby Month offer and now have a K2 plus KSB2 SSB Option, KNB2 Noise Blanker, KAT2 20W Internal ATU to build. My query is: do I build first the K2 transceiver as CW only, then add in the options as completed? From reading the manuals, components have to be removed from the completed K2 before the addition of some options. It seems a shame to undo work. Old blogs mention a Rework Eliminator kit which would have been a solution to my dilemma, but these are long since discontinued. So, do I build first and add options later? I'd be pleased to hear from other K2 builders. I must add a huge kudos to both Elecraft and UPS - California to Scotland - 46 hours from ordering to delivery! What service! Thank you. Bruce GM4BDJ" __ __ 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] New K2 build.
You should have soldered them in 'as is'. Brian Denley KB1VBF Sent from my iPad > On Apr 22, 2015, at 10:49 AM, Thomas Skinner wrote: > > As I prepare to build my second k2, my mind drifts back to the hours I spent > with the little ceramic caps. > > They all had the bonding material over flowing the lead shoulders. I spent > hours cleaning that hardened material off the leads before soldering them in > place. > > The QUESTION: > > Did I need to remove the extra material or should I just have dropped them in > and made sure they got soldered properly? > > Tia, > > Tom, ng3v > > Sent from my iPhone 6 > > __ > 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 b.den...@comcast.net __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New K2 build.
I'm assuming you mean the epoxy that the cap is dipped in. I've never removed it; I'm not sure but I think doing so may damage the sealing quality of the epoxy. From: Thomas Skinner To: "elecraft@mailman.qth.net" Sent: Wednesday, April 22, 2015 10:49 AM Subject: [Elecraft] New K2 build. As I prepare to build my second k2, my mind drifts back to the hours I spent with the little ceramic caps. They all had the bonding material over flowing the lead shoulders. I spent hours cleaning that hardened material off the leads before soldering them in place. The QUESTION: Did I need to remove the extra material or should I just have dropped them in and made sure they got soldered properly? Tia, Tom, ng3v Sent from my iPhone 6 __ 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 hlyin...@yahoo.com __ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
Re: [Elecraft] New K2 build - encoder problem
If you haven't already found the problem. Another thing you can check is U2. With the rig off, 3,4,5,6 & 11,12,13,14 should all read 100K ohms to VCC pin(18) With the rig on, these should all normally be at VCC voltage. -- bw...@fastmail.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
Re: [Elecraft] New K2 build!
With rework eliminators, you build "headers" (can be thought of as place holders), and add all needed components for the features you want. Then when you decide to build the features, you just unplug the headers and plug in the new feature. The alternative requires complete disassembly of the K2 along with the addition and removal of various components to add a new feature. This comes into play more if you have a problem, or something breaks. The feature that breaks can be unplugged and the header put back in place. The phrase plug-and-play covers it pretty well. David Wilburn NM4M Michael Harvey wrote: I am prepping to build another K2 and was wondering what rework eliminators to add. I plan to add most options eventually. The K2 I currently use I did not build but the rework eliminators seem like a good investment. Is there a kit including all the eliminators? Thanks! Mike AB0TX K2 #4841___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] New K2 build...Missing R116, also
I sent Steve this answer off list...but it also answers Clark's missing R116 question...so I'm posting it to the full list. dk Steve...I ran into this same issue with mine a couple of weeks ago and when I checked with Scott at Elecraft parts, he said the small green/brown/green was R116 which goes across toroid L33 in the BFO section (pg58). I counted all my RF chokes and compared them to the parts list and found the parts count showed a regular sized brown/black/brown so I used that. I think they need to learn the difference between a miniature and sub-miniature! Also, I couldn't get up to 6V on page 61, the VCO alignment stage...I would max out at 3.8 volts...and I had the windings correct on T-5, the correct part at C72 and the correct value at L30...and when I asked and even sent a photo of the toriod, Gary said I should try to squeezing the windings closer together (rather than leaving them uniformly spread out to ensure 85% coverage of the toriod as they stress over and over)...I moved them (pinched) closer and it immediately solved the problemthat little tip would be nice to have show up somewhere in the book, also! David King KE7EKA Quoting [EMAIL PROTECTED]: Hello, I was wondering if anyone else has built a K2 lately. I am in build phase II and I am to install an RF Choke on the back of the board, it's item ID is RFC15. The manual says to expect a sub miniature with Brown-Black-Brown. However, my sub miniature RF Choke is Green-Brown-Green. Is this a recent change that is not noted in the construction manual? Best Regards, Steve ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com This message was sent using IMP, the Internet Messaging Program. ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] New K2 build...
On Sat, 21 Jul 2007, [EMAIL PROTECTED] wrote: I was wondering if anyone else has built a K2 lately. I am in build phase II and I am to install an RF Choke on the back of the board, it's item ID is RFC15. The manual says to expect a sub miniature with Brown-Black-Brown. However, my sub miniature RF Choke is Green-Brown-Green. Is this a recent change that is not noted in the construction manual? There is a change indeed. I noted it for future building once I'm past correcting the build of my control board Will ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] New K2 build...
Hey Guys, Thanks everyone for your help, you guys are quick. I found out that I didn't get an errata sheet with my K2 and Elecraft has replaced the sub miniature Chokes with larger ones. I guess some people were having problems with how fragile the minis were. So, I was actually looking at R116, the only sub mini left, it wasn't a choke at all. Best Regards, Steve > Hello, > > I was wondering if anyone else has built a K2 lately. I am in build phase > II and I am to install an RF Choke on the back of the board, it's item ID > is RFC15. The manual says to expect a sub miniature with > Brown-Black-Brown. However, my sub miniature RF Choke is > Green-Brown-Green. Is this a recent change that is not noted in the > construction manual? > > Best Regards, > Steve > ___ > Elecraft mailing list > Post to: Elecraft@mailman.qth.net > You must be a subscriber to post to the list. > Subscriber Info (Addr. Change, sub, unsub etc.): > http://mailman.qth.net/mailman/listinfo/elecraft > > Help: http://mailman.qth.net/subscribers.htm > Elecraft web page: http://www.elecraft.com > ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
Re: [Elecraft] New K2 build...
Steve, Look more closely at the bands - I would bet it has a green body and you are confusing the color code bands with the body color. A green - black - green RF choke would have a value of 5,,000 uH, and I don't believe that large an inductance would be practical in a choke of the size you have in hand. 73, Don W3FPR [EMAIL PROTECTED] wrote: Hello, I was wondering if anyone else has built a K2 lately. I am in build phase II and I am to install an RF Choke on the back of the board, it's item ID is RFC15. The manual says to expect a sub miniature with Brown-Black-Brown. However, my sub miniature RF Choke is Green-Brown-Green. Is this a recent change that is not noted in the construction manual? ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
RE: [Elecraft] New K2 build...
RFC15 should be Brown-Black-Brown (100 uH). I believe the only component in the K2 with the color code Green-Brown-Green is 5.1 Megohm resistor R116 that goes across L116 that you'll install shortly (page 60 of the rev G manual). Ron AC7AC -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of [EMAIL PROTECTED] Sent: Saturday, July 21, 2007 10:33 AM To: elecraft@mailman.qth.net Subject: [Elecraft] New K2 build... Hello, I was wondering if anyone else has built a K2 lately. I am in build phase II and I am to install an RF Choke on the back of the board, it's item ID is RFC15. The manual says to expect a sub miniature with Brown-Black-Brown. However, my sub miniature RF Choke is Green-Brown-Green. Is this a recent change that is not noted in the construction manual? Best Regards, Steve ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com ___ Elecraft mailing list Post to: Elecraft@mailman.qth.net You must be a subscriber to post to the list. Subscriber Info (Addr. Change, sub, unsub etc.): http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/subscribers.htm Elecraft web page: http://www.elecraft.com
