BSR450 IF filter retrofit  
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L107 and R137 located on the solder side of the board after fitting the too-big IF filter. Notice a drilled hole for one leg of the filter right of R137

L107 and R137 located on the solder side of the board after fitting the too-big IF filter. Notice a drilled hole for one leg of the filter right of R137


Solder side of the board untouched. 455kHz filter sits in the middle. BSR450 with new 455kHz filter fitted in. L107 and R137 needed to be removed and are at the solder side L107 and R137 located on the solder side of the board after fitting the too-big IF filter. Notice a drilled hole for one leg of the filter right of R137
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