I recently had a chance to implement the improved sidetone filter by TF3MA (http://www.raunvis.hi.is/~matti/TF3MA/sidetone_tf3ma.html). This was inspired by the experience of KT5X in November (http://www.ac6rm.net/mailarchive/html/elecraft-list/2006-11/msg00456.html).
This mod really works wonders with the sidetone quality of the K2, and makes it much more like actually received high quality CW. It is probably the mod which has made the most immediate audible difference in my K2 of all the mods that I have made over the years - and I have made many! It is also really very simple to do. The explanation is that it is a better engineering solution to harmonic filtering than the present filter, and that applies even in comparison to the improved filter in the serial no 3000+ K2's. 73 Sverre LA3ZA http://www.qslnet.de/la3za/ -- Jeg bruker gratisversjonen av SPAMfighter for privatbrukere. Den har fjernet 5744 soppelpostmeldinger til na. Betalende brukere har ikke denne meldingen i e-postene sine. Fa tak i SPAMfighter gratis her: http://www.spamfighter.com/pro _______________________________________________ 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