Re: [Elecraft] K2 S/N 4787 Build In Progress
Ron D'Eau Claire wrote: I'm inventorying each board as it is begun. ... At this point capacitors for the RF board are a wild blur. I'm sure I have not correctly identified at least a third of them. Many numbers on the caps are simply not in the parts list. If anyone has a good way to ID them I would be pleased to hear English is not my mother tongue. I am not a technician. However, I managed to identify all the capacitors. Some of them are tiny, you could use magnifier. Remember to check both sides of capacitors. I had some difficulties identifying because I looked another side of capacitors. DVM with a capacitance measuring function. Several resistor packs have not had the right part numbers. So far I've been able to ID them by measureing Right! There were some different numbers. This topic was covered in list archives. Multimeter helped. I had some red resistor packs with wrong numbers when comparing to inventory list. Their resistance was OK. Rolf Moberg (s/n 4759 waiting to be built) oh6kxl ___ 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] K2 S/N 4787 Build In Progress
Jim, I am only speaking from my experience and this may be a childish statement from your point of view, and I am not trying to be smart or anything like that, but be sure and look at both sides of the capacitors. Some of them have numbers on both sides. I got in a hurry when doing my inventory and could not find a couple of capacitors because I made this mistake. But then again, that's me. I'm sure you are already aware of this but I thought I would mention it. I actually called Elecraft and told them I was missing a couple of caps because of this. I had egg on my face when I realized what I had done. The plus side is that I had a couple of caps for my junk box. Hi Hi Stan Rife W5EWA Houston, TX K2 S/N 4216 Jim, AB0UK, wrote: I'm inventorying each board as it is begun. ... At this point capacitors for the RF board are a wild blur. I'm sure I have not correctly identified at least a third of them. Many numbers on the caps are simply not in the parts list. If anyone has a good way to ID them I would be pleased to hear from you. Measuring them so far has proved somewhat futile with a simple DVM with a capacitance measuring function. Several resistor packs have not had the right part numbers. So far I've been able to ID them by measureing them. My impression so far is that there are components of some of the accessories to be installed on the three main boards but when and sometimes how is not always clear. -- ___ 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] K2 S/N 4787 Build In Progress
I've been doing electronics for years and there's some pattern matching you have to do when sorting out parts. Especially caps and resistor packs. It's not completely automatic like resistors used to be. (I say used to be because I could swear the colors were clearer when I was younger. :) ) I'd take all the capacitors and group them together first. Then you know that you have 12 marked 104 (for example) and then look on the list to see which capacitor you should have 12 of. Once in a while Elecraft gets the counts wrong so make sure you double check the values and ask here if you have to. Jim, AB0UK, wrote: I'm inventorying each board as it is begun. ... At this point capacitors for the RF board are a wild blur. I'm sure I have not correctly identified at least a third of them. Many numbers on the caps are simply not in the parts list. If anyone has a good way to ID them I would be pleased to hear from you. Measuring them so far has proved somewhat futile with a simple DVM with a capacitance measuring function. Several resistor packs have not had the right part numbers. So far I've been able to ID them by measureing them. -- Hisashi T Fujinaka - [EMAIL PROTECTED] BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte ___ 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] K2 S/N 4787 Build In Progress
Jim, AB0UK, wrote: I'm inventorying each board as it is begun. ... At this point capacitors for the RF board are a wild blur. I'm sure I have not correctly identified at least a third of them. Many numbers on the caps are simply not in the parts list. If anyone has a good way to ID them I would be pleased to hear from you. Measuring them so far has proved somewhat futile with a simple DVM with a capacitance measuring function. Several resistor packs have not had the right part numbers. So far I've been able to ID them by measureing them. My impression so far is that there are components of some of the accessories to be installed on the three main boards but when and sometimes how is not always clear. -- Wow, Jim! I'm surprised you are finding so many irregularities in the parts numbering! I've written the assembly instructions on some of the more recent Elecraft kits like the XV transverters, the KX1 and the new T1 tuner. From what I've seen the parts are very much the same as when I built my K2 five years ago. On the caps there ARE a lot of other marks in addition to the numbers shown in parenthesis, but the right parts in the kit are the ONLY ones with the numbers shown somewhere on them. The value (like 103 for a .01 ufd cap) is often followed by the letter j, but otherwise is usually on a line of its own on the cap. As the section on parts i.d. explains, the numbering is very similar to resistors only done in digits: 103 = 1 pf or 0.01 ufd. Many of the smaller caps have the actual value like (10) for a 10 pF cap since there's no need for a multiplier. If the numbers in paren. in the text are on the part somewhere, it should be the right cap. The resistor pack situation you found is a real surprise. Those things are a real monster if you put the wrong in the wrong place (I did once, and managed to remove it in one piece without a high-powered vacuum desolderer, but it's the sort of thing one doesn't want to do twice in a lifetime!) I don't blame you for being concerned about that. Many of the I.C.s have a couple of different possible numbers because there are a couple of interchangeable types used, but I thought they were called out in the errata. Drop [EMAIL PROTECTED] a note if you have a question. Gary will not only confirm your part i.d., but if there is an issue that hasn't been documented, he'll get the ball rolling to include the info in future kits. I recommend building the basic K2 first. There's very little rework required to add the accessories, and doing the basic unit as described in the K2 assembly manual means that you can check it out according to the manual and be sure all is well before adding the other modules. I'd ignore the other modules until the K2 is up and running. That's how I built ol S/N 1289! As for fitting everything in that box, every time Wayne designs a new rig, I have to buy a stronger magnifier! Today I lost entire whole circuit board assembly for my T1 tuner prototype. Hunted all over for it for an hour. I had dropped a QSL card on my desk. Yep, it was hidden under the card. Ron AC7AC ___ 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] K2 S/N 4787 Build In Progress
Jim Harris wrote: On the front panel board while trying to add SSB components after the fact I managed to slightly burn the edge of a push button. Wish the instructions had mentioned to put the low SSB components in before the higher and vulnerable parts were added. Having just been through that part of the build too, I agree with Jim... the top-of-board soldering for the KSB2 connector is is just the dickens to do with the plastic pots and buttons in place; I made it through without toasting anything but it would have been *so* much easier to do before the top got crowded with tall meltable things. Is there a reason this is where it is in sequence other than Uh-oh, they're about to mate the FP board to the panel and wire the enccoder; drop in the KSB2 parts now because it will be inconvenient later? If not, I say move it to someplace earlier. Another suggestion: Whenever you cue the installation of the KSB parts on the FP, repeat the warning about component height/lead length for Q3 that was issued for Q3 and Q2...I forgot about it and I had to monkey with Q3 after installation to allow the FP board to fit properly against the metal panel. I'm still delighted with the kit, of course... 73 de Maggie K3XS (K2 S/N 1641), who needs to go get more solder in the morning; that no-lead stuff with silver in it stinks. -- -/___. _)Margaret Stephanie Leber CCP, SCJP/The art of progress / /(, /| /| http://voicenet.com/~maggie SCWCD/ is to preserve order/ ---/ / | / | _ _ _` _ AOPA 925383/ amid change and to / --/ ) / |/ |_(_(_(_/_(_/__(__(/_ K3XS / preserve change amid/ -/ (_/ '.-/ .-/ARRL 39280 /order.-A.N.Whitehead/ /(_/_(_/___AMSAT 32844_/[EMAIL PROTECTED]/ ___ 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] K2 S/N 4787 Build In Progress
Haw Haw!! And I thought I was then only one who did things like that! I once looked for a part for two days. It was sitting on my workbench, more or less in plain sight, the whole time. - Jim, KL7CC Ron D'Eau Claire wrote snip Today I lost entire whole circuit board assembly for my T1 tuner prototype. Hunted all over for it for an hour. I had dropped a QSL card on my desk. Yep, it was hidden under the card. Ron AC7AC ___ 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
