> This should be close but Elecraft has not updated their schematics since > October 2008, so there could be differences: > > http://n1eu.com/K3/k3audiomod.htm
Lyle and I exchanged notes on this a while back as he and I were experimenting with DSP Board component changes above and beyond the much-discussed headphone cap change. My guess is that the Rev. C board changes take the notes in the link into account. However, he was re-scaling R values. I had re-scaled C values since fewer components were involved in solder re-work. The net result is essentially the same but changing R values likely makes more sense in production where the cost of SMT resistors is essentially the same irrespective of component value versus the increased cost of higher-valued capacitors. And as Bill points out, there may be other subtle differences. Given the number of changes to the DSP Board, I recommend taking advantage of Elecraft's swap-out program unless there's a lot of comfort in SMT/SMD re-work. Paul, W9AC ______________________________________________________________ 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
