I have revised the original file - https://drive.google.com/file/d/0B_D41ceK5uSqM3VGa05BWXBhYkE/edit?usp=sharing
And I added a couple layouts for anyone wanting to make a series of these on a 6x9 sheet of copper clad - 2 files(front and back) - https://drive.google.com/file/d/0B_D41ceK5uSqRUNIeUZ4eGs4cUU/edit?usp=sharing https://drive.google.com/file/d/0B_D41ceK5uSqeHJ0YXd4YXh4Z1U/edit?usp=sharing - 73 - Sean On Jan 29, 2014, at 6:29 PM, Kevin Crossett <kcross...@gmail.com> wrote: > Hi Sean. I am looking forward to seeing the revised layout. I did something > similar several months ago, but my layout skills using pcbexpress were not > nearly as clean and sharp as your board. In the end, my transfer method using > an clothes iron left a lot to be desired. I also wasted a lot of copper clad > board working on the design. Not having an electronics background did not > help the situation either. Don helped me figure out a few things I was doing > wrong. Nonetheless, I continued trudging forward, and managed to learn > something in the process. Since that first experience with board > construction, I purchased a laminator off Amazon that works great. I have a > board ready to use for a xtal test fixture from Chuck Adam's, K7QO lab > notebook, but I have not had time to build it yet ... too many other projects > ahead of it, including a great transmitter from GQRP that uses a similar > construction technique as the xtal fixture (muppet or limerick construction > depending on who is speaking). That rig is on the bench now, and as soon as I > can get into the workshop, I plan to start making some solder smoke. > > > > > On Wed, Jan 29, 2014 at 3:37 PM, s...@seanmichaeljohnston.com > <s...@seanmichaeljohnston.com> wrote: > Dhoh! > > I'll post up a revised version with the OUT label corrected. Thanks for > letting me know. > It's good to know that it works. > > - Sean > > On Jan 29, 2014, at 1:21 PM, Kevin Crossett <kcross...@gmail.com> wrote: > >> I have been messing about with this board for a while, but have not had >> success hooking it up the rig yet. I downloaded the schematic that Sean >> produced ... nice job ... and made up a board using the laser toner method >> described by K7QO. I did see one small issue with the board. The OUT label >> is actually labeled GND ... a minor oversight. Otherwise the board looks FB. >> >> Two questions about using pin 5 from the microphone header ... >> >> Is the ground from the audio out board still used? If so, where does it >> connect? >> >> Also, while I don't use a mic (CW only at this point), if I attach the audio >> out to pin 5, can I still plug in an Elecraft-wired mic without unplugging >> the audio out connector from the header? >> >> Thanks for any insight... >> >> Kevin >> KK4LSG >> >> >> On Mon, Jan 27, 2014 at 6:51 PM, Don Wilhelm <w3...@embarqmail.com> wrote: >> Sean, >> >> The circuit is simple enough to build on perfboard if you don't want to go >> to the trouble of making a board. If you do make boards, you might want to >> consider making additional board and offering them for sale. There are >> occasional requests for those boards. >> >> Build the version which lays the components flat on the board and attach it >> to the back of the Control Board. That way everything except the audio >> output is on the Control Board making the Control Board easy to remove for >> servicing - plus it fits easily when the KPA100 is installed. For the >> output connection, yes an unused microphone pin is an ideal place (for the >> Elecraft microphones, use pin 5). Use a wire that is an adequate length to >> allow the Control Board to be removed sufficiently that you can reach the >> microphone configuration header on the back of the Front Panel. You can >> solder the audio output wire to one of the 'computer' type jumpers that will >> plug right into the microphone configuration header - make certain the >> 'jumper' is plugged only into the side that is closest to the microphone >> jack. >> >> The only difference between Pauli's (SK) AF take off point and the one I >> used is that Pauli's is prior to the muting transistors in the K2 and my >> points are after the muting transistors. >> If you prefer that the AF not be muted during TX, then you can still attach >> to the back of the Control Board at the rear of CB J2 pins 1 and 2 - and is >> quite independent of the KDSP2 (or KAF2) option. >> >> I might add that Pauli did buy one of my boards - I asked him "Why since he >> had a wonderful interface already", and he replied that my Fixed Audio >> Output board was an easy and simple solution. >> >> Good luck on getting that license. >> >> 73, >> Don W3FPR >> >> >> On 1/27/2014 6:08 PM, Sean Michael Johnston wrote: >> Hello All. >> >> I’m a newbie here and about to embark on building a K2. One of the many uses >> I have planned for the radio is to send emails over Winlink 2000 while at >> sea on a sailboat. >> I'd like to communicate with the SignaLink USB sound card through Winmor >> first and then eventually with a PACTOR 3 or 4 modem. >> >> I was thinking of building the fixed audio out designed by W3FPR & NØSS. My >> plan is to fabricate a pcb using the laser printer transfer method. I have >> recreated NØSS’s layout as a printable pdf >> (https://drive.google.com/file/d/0B_D41ceK5uSqM3VGa05BWXBhYkE/edit?usp=sharing), >> and am thinking I’ll run the line out to pin 5 of the 8-pin mic connection >> so I can have a single cable between the K2 and the SignaLink. >> >> My question is where is the best point in the K2 to source the AF inputs >> from? Is it cleaner to tap into the control board as is illustrated by >> W3FPR’s great instructions >> (http://www2.opparc.org/mirrors/n0ss/www.n0ss.net/w3fpr_fixed_af_output_for_the_k2_v2r1.pdf), >> or would it be a better signal if I tap into the KDSP2 board as >> recommended by EA3BLQ >> (http://www.qsl.net/ea3blq/downloads/k2di-pci_const_manual.pdf) for his >> Sound Card Interface? And is this the best way to get a line out from the >> K2, or has there been any newer advancements along those lines? >> >> I realize that I’m building a legacy product here, but from the activity >> I’ve seen on this mailing list, it’s definitely not dead yet. >> >> >> >> ______________________________________________________________ >> 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
