Deni, T7 is the only transformer that will make any difference. If it is wound with a 13:3 turns ratio it can be rewound with a 20:5 ratio for a better impedance match to the IF filter.
The number of turns on bifilar wound T3 has been reduced in later K2s, but I have not noticed any difference (including the RF levels on my 'scope) after changing it on several K2s. 73, Don W3FPR > -----Original Message----- > > I have kept my K2 (1188) up to date with all the A/B mods, > however at times > I see references such as the one below about T7 where a toroid may have > been changed from the original windings to a revised spec. Are these > documented anywhere, which toroids are now different and why? > -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.11.10 - Release Date: 5/13/2005 _______________________________________________ Elecraft mailing list Post to: [email protected] 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

