Charles, The parts for the sidetone waveshape mod are included with the KATOBKT from Elecraft. The values differ slightly from those in the original sidetone waveshape mod, but both work - still not a pure sinewave, but much closer than before.
You should consider doing the complete A to B upgrade including all the optional parts along with making a change to the new crystal set - you will not be sorry after you hear the difference. Download the A to B instruction manual and look at the changes listed on the first page. And if you are considering the addition of a KPA100, I highly recommend that you also add the keying waveshape change. The Extremely Strong Signal Handling change came after the A to B kit too, but no kit for it - just takes 2 1N4148 diodes to add it. For about $70US you can end up with a K2 that is equal to the current production K2s - there IS a difference. 73, Don W3FPR > -----Original Message----- > > I built K2 Nr 413 and made lots of CW contacts, the built in Mojo > was great. > I stopped using it because the crystal oscillator in the side tone was > not a pure sine wave and it became offensive to my ear. I only use CW. > > I have been informed by a K2 op that the more recent versions have a > better side tone. If this is so then I may consider building the K2/100. > Could some one please help me with this decision? > > Charles > _______________________________________________ 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
