Raj, Since you appear to be relatively skilled based on your list of successful projects, you could decipher the installation instructions for each of the options and as a minimum, install the headers and use jumpers pushed into the header pins instead of soldering the jumpers onto the K2 boards. I do it that way most of the time during construction. The KNB2 requires changing resistors on the RF board, but the K2 will work just fine if you install the resistor and jumper as instructed in the KNB2 manual (just don't do IP3 measurements without the 6dB pad in the KNB2 installed). C167 can be inserted into the KSB2 header, and C6 can be inserted into the K60XV 3 pin header. I recommend that you not install D19 and D20 nor change C71 to the 120 pf value until after you have completed the K2 without the K60XV option - that will leave you with one capacitor (C71) to desolder.
One caveat - if you do not understand completely what to do and how to do this, then build it step by step as instructed in the manual. There is not really a lot of desoldering to be done when installing these options. Your other possible path is to buy the 'Rework Eliminators' and follow their instructions. 73, Don W3FPR > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] Behalf Of Rajiv Dewan, N2RD > Sent: Monday, June 26, 2006 4:17 PM > To: Elecraft@mailman.qth.net > Subject: [Elecraft] (no subject) > > > Just arrived: K2 #5613 with KSB2, K160RX, K60XV, KNB2, KIO2, and > KDSP2 for use as IF rig for the four XVs (50, 144, 222, 432) that I > have already built. Since I plan to put these options in, is there > an optimal option build schedule? Will I have to undo work to put in > these options? I don't like de-soldering! > > Any suggestions, ideas are welcome. > > BTW, I am an avid kit builder / home brew enthusiast. My most > recently completed project is the N2PK VNA. Other than the XVs, I > have also built the DSP-10 2m rig, KA7EXP Power meter, IQ-VFO and > Binaural receiver combination, and many other projects. > > Regards, > > Raj, N2RD > > > -- > Rajiv Dewan, N2RD > [EMAIL PROTECTED] > FN13fc > > -- > > _______________________________________________ > 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 > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.1.394 / Virus Database: 268.9.4/375 - Release Date: 6/25/2006 > > _______________________________________________ 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
