BSR450 IF filter retrofit  
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Original BSR450 IF filter layout. Notice components L107 and R137 on left side of the 455kHz filter

Original BSR450 IF filter layout. Notice components L107 and R137 on left side of the 455kHz filter


Original BSR450 IF filter layout. Notice components L107 and R137 on left side of the 455kHz filter 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
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