Bill, Ask yourself how many additional options are you going to add to that K2. If the answer is none or few, forget the Rework Eliminators, they are a waste of your time and money.
The Rework Eliminators only make sense on a new K2 build when you are undecided about the option set that you want, or want to do a basic K2 build now and order the options later. 73, Don W3FPR On 9/15/2012 1:21 AM, Bill Tubbs wrote: > This thread is the first I've heard of this rework eliminator. It sounds > interesting but I can't imagine that working on K2 upgrades is that daunting, > is it? Granted, I didn't build my used K2 but all I've heard is that the > process is very straightforward with Elecraft's excellent instructions. > > I'm about to upgrade my early model to the latest version myself, and was > going to just plow through the stages one by one (I already have all the > upgrade parts). Would there be any advantage to this rework eliminator at > this stage or is that designed for upgrades "to be done at a later date"? > > Bill > WK6A > > Sent from my iPhone > > On Sep 14, 2012, at 6:24 PM, Johnny Siu <[email protected]> wrote: > >> Completely on the contrary, I always don't feel the "Rework Eliminiator" is >> necessary. Installation or rework of most of the K2 options is NO more >> difficult than the K2 itself's construction. Taking KSB2 or , KAF2 and KNB2 >> as examples, after you take out option, you could easily revert to basic K2 >> by adding a few jumpers or one / two components. >> >> In the construction of over ten K2 in the past, I never felt the need of the >> rework eliminiator. Currently, I am working on turning an early version K2 >> into latest version. >> >> TNX & 73, >> >> >> Johnny VR2XMC >> >> >> ________________________________ >> 寄件人︰ Don Wilhelm <[email protected]> >> 收件人︰ [email protected] >> 傳送日期︰ 2012年09月15日 (週六) 1:48 AM >> 主題︰ Re: [Elecraft] Getting ready to order a K2 - which options >> >> If you do use the "Rework Eliminators" (or often called "unPCBs") I >> recommend you do *NOT* install the one for the K60XV - wait until you >> actually have the K60XV option in hand. >> >> Why you may ask - well, the change of the C71 value modifies the PLL >> voltage range drastically. With the K60XV installed, the lowest voltage >> which must be adjusted for occurs at 5300 kHz, and if one does not have >> the K60XV in place, the K2 will not tune to the 60 meter band - so you >> have to guess about the low voltage point, and remember to revisit it >> when you do put the K60XV option in. >> >> It might be OK to install the headers, add the coax on the bottom of the >> board and install D19 and D20, but do not change C71 until it is time to >> install the K60XV. >> >> I just worked on a K2 that was sent in for repair because the owner did >> not know to turn the D19 menu parameter to "y" - the rework eliminators >> had been installed and he did not know that either (he had just bought >> the K2). So he endured the cost of repair and shipping just because of >> a simple menu entry - don' change C71 until you have the K60XV in hand. >> >> 73, >> Don W3FPR >> >> >> On 9/14/2012 12:30 PM, Wayne Conrad wrote: >>> On 09/14/12 02:19, Fred Smith wrote: >>>> One thing I would suggest "strongly" is to consult with Don and ask him to >>>> advise you of the options and the order of installation as some can be done >>>> during the build. Otherwise you will disassemble much of the radio to >>>> install some of the options. On the other hand some are easily done after >>>> the build is completed at any time. JMHO >>> I'd suggest the "Rework Eliminiator" K2 Option Bypass Headers: >>> >>> http://www.eham.net/reviews/detail/6372 >>> >>> They work very well. You build the option bypass headers, and then when >>> you build your K2, you build it as though you are installing every >>> option. Many options require that you remove a component or two from >>> the main board, so you just don't install those components at all during >>> the build. For the options you don't actually install, plug in the >>> option bypass header. Later, when you add an option, simply unplug the >>> bypass header and plug in the option. >>> >>> 73, Wayne Conrad KF7QGA >>> ______________________________________________________________ >>> Elecraft mailing list >>> Home: http://mailman.qth.net/mailman/listinfo/elecraft >>> Help: http://mailman.qth.net/mmfaq.htm >>> Post: mailto:[email protected] >>> >>> 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:[email protected] >> >> 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:[email protected] >> >> 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:[email protected] > > 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:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html
