ok ok circuit coming soon :) I actually know, at the moment, of the implications of clipping (good or poorly) one half of the wave, and the DC offset etc. But I'd like to know the way "it would be done" if a sine wave was available :) PS: I learnt from some forum/sites that "partitor" was good english (somewhat at least :) for "resistor-based divider". Sorry if I was wrong.. :) -- Ciao, Dario -- Cyberdyne -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist