Chuck, It will not be easy to build the KXB3080 first because it cannot be tested, and part of it is making changes to the KX1.
If you want to do it properly without removing many components, you will build the KX1 up through page 30 in the manual. Then on page 31, mount L6 on the bottom of the board, and Do *not* install L7. Then on page 32, do not install C27, and on page 33, do not install C26, nor C1. When you get to page 40 in the KX1 manual, I strongly recommend that you wind and install L1 and L2 as instructed - the downfall of most builders for the KXB3080 is a problem with the tiny Low Pass Filter Board. When you finish with page 42, go to the KXB3080 manual and do all steps through page 7. At that point, you can do the tests on 40 and 20 meters indicated in the KX1 manual beginning on page 43. When you have finished those alignment and test steps, go back to the KX1 manual and continue on page 8 through to the end. The only components you will have to remove are L1 and L2. You can clean up the 4 solder pads with solder wick and if the holes do not come clean, heat the pads and use a toothpick or a stainless steel needle to push the solder out of the holes. Task accomplished. After you have done 3 of these KX1 with KXB3080 options successfully, you can skip the stock L1 and L2 toroids and the subsequent testing, but until then, I recommend you follow my instructions. Should you have problems, I can send you my repair fee schedule. 73, Don W3FPR On 5/15/2012 8:32 PM, ke9uw wrote: > Rather than unsolder a number of components by buildingd the KX1 first, I'm > going to build the 3080 and then the KX1 without the removed/subbed > components. I figure if I make no errors, no problems...or is there some by > me unforseen caveat? > I took about 10 years to build the K2...collected all the mods during that > time and incorporated them into the 2000 year vintage K1 which worked when > finished. I had bought two firmwear chips before i ever turned it on the > first time. The KX1 is not as big a job. > Comments? > Chuck, KE9UW > > ______________________________________________________________ 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
