Hello, waiting for a new K2 kit to arrive I collected some links of semiconductor datasheets and made them available at: http://www.qsl.net/df7tv/k2_semi.html Although I'll add others in future you'll find most of the K2 and its options semiconductors here at this time. 73 Thomas, DF7TV -- Thomas Martin, Stuttgart, Germany http://www.qsl.net/df7tv