Thanks, Don. I'll re-check the bi-filar toroid. 73 Rich NU6T
On 12/30/2010 3:50 PM, Don Wilhelm wrote: > Rich, > > You have the capacitor mounted correctly, the narrow end is flat while > the broad end is rounded. > You are also correct to adjust it with a non-metallic tool - both > sides of the capacitor are above ground and will be de-tuned if you > touch either of the plates. > > I suspect your problem is not with the capacitor, but with the > bi-filar wound toroid. Check that carefully for the proper leads in > the right holes, and make sure the leads are well tinned - you should > be able to see a bit of tinned lead above the board - if not, be > suspicious of it, even to the point of removing it and re-tinning the > leads.. > > 73, > Don W3FPR > > On 12/30/2010 5:42 PM, Rich NU6T wrote: >> I'm in the final stages of testing/adjusting a newly built KAT1 board in >> a 2-band K1 (RF Board rev E). In the SWR Bridge adjustment task, I'm >> not seeing any voltage change beyond what seems to be random noise. I'm >> using a plastic adjustment tool and a DMM. >> >> I'm concerned I may have installed trimmer C9 backwards. It has a >> broad/wide side and a blunted narrower side. Instructions call for the >> flat side to the left. The broad side seems curved, so I placed the >> narrow side to the left, wide side to the right. >> >> Instructions indicated to follow the pattern on the board for C9 >> installation, but my board has two holes and what look like horizontal >> parentheses with no indication of broad, flat or narrow sides. >> >> The manual notes that the null may be sharp. I'm not seeing it. >> >> Thanks for any advice. >> >> Rich >> NU6T >> ______________________________________________________________ >> 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
