Patent ID: 7319497

Claim:
A television tuner for receiving a plurality of television channels, comprising a bandpass filter ( 4 ) tunable to a desired channel frequency, and a mixer ( 5 ) for transferring, with a tunable local oscillator ( 6 ), the desired channel frequency to a predetermined intermediate frequency, said tunable bandpass filter ( 4 ) comprising reactive elements mounted on a printed circuit board for enhancing the transmission of the desired channel frequuency and an image suppression capacitance (C 8 ) for reducing the transmission of the image frequency, characterized in that said printed circuit board comprises first ( 8 ), second ( 10 ) and third ( 13 ) traces, in that in case of a television tuner for NTSC signals, the image suppression capacitance (C 8 ) comprises said first ( 8 ) and second ( 10 ) traces while said third trace ( 13 ) is idle and in that, in case of a television tuner for PAL signals, said second ( 10 ) and third ( 13 ) traces are interconnected and the image suppression capacitance (C 8 ) comprises said first trace ( 8 ) and said interconnected second and third traces ( 10 , 13 ).