W2KJ wrote >The K2 sidetone is not as pure and "smooth" as the sinewave sidetone in my >Argonaut V...
>This is really my only nit to pick on the K2...the sidetone >generation....the rest of the radio is superb and my favorite portable rig. For K2's with serial number > 3000 or upgraded earlier K2's, there is another improved sidetone circuit here: http://www.raunvis.hi.is/~matti/TF3MA/sidetone_tf3ma.html It is important to have a 47 mH inductor with the correct series resitance here, or to add resistance to it if it is initially too low. I have done this mod and I can only say that it is well worth the effort even for the upgraded K2's. 73 Sverre LA3ZA Unofficial Guide to K2 Modifications http://www.qslnet.de/member/la3za/K2/mod.html
_______________________________________________ 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
