:::At 08:36 17.11.99 +0100, Martin Czech wrote: :::>:::If one uses transformers with two secondary windings, one can add a :::>:::small trimmer to adjust the mismatch of the two windings. I guess this is done at the modulator side to reduce carrier feedthrough? I could also imagine to give each diode a series trim 100-1000 Ohm. m.c.