According to John/KI6WX http://www.ac6rm.net/mailarchive/html/elecraft-list/2000-05/msg00781.html you can get better output on 10 meters by substituting the regular core of T2 by an Amidon BN-43-302 binocular core. It does not seems to be possible to get such a core in Sweden. Does anyone know where to get one, or a substitute for it? 73 de Håkan/SM6EQO