Some very strong received SSB signals, may grossly "distort" the audio quality. The following modification will cure this problem! # Remove C 31 ( . 47 uF ) # Change R 43 ( 10 K ) to 1 K. # Change R 41 ( 150 K ) to 270 K. # Change R 47 ( 1.5 K ) to 3.9 K. All this parts are found along the rear of the 2902 IC Thats all you have to mod!
wielki1980