Signal coupling and trap network

Claim 1

IN A TRANSISTORIZED TELEVISION RECEIVER THE COMBINATION OF A MIXER CIRCUIT INCLUDING A FIRST TRANSISTOR HAVING A COLLECTOR ELECTRODE, AN INTERMEDIATE FREQUENCY AMPLIFIER CIRCUIT INCLUDING A SECOND TRANSISTOR HAVING A BASE ELECTRODE, A PARALLEL RESONANT CIRCUIT CONNECTED TO SAID COLLECTOR ELECTRODE, A SERIES TUNED CIRCUIT CONNECTED BETWEEN SAID PARALLEL RESONANT CIRCUIT AND SAID BASE ELECTRODE, A FIRST SERIES RESONANT TRAP CONNECTED BETWEEN ONE TERMINAL OF SAID SERIES TUNED CIRCUIT AND A REFERENCE POINT, A SECOND SERIES RESONANT TRAP CONNECTED BETWEEN ANOTHER TERMINAL OF SAID SERIES TUNED CIRCUIT AND THE REFERENCE POINT, SAID FIRST AND SECOND TRAPS INCLUDING RESPECTIVE INDUCTORS MUTUALLY INTERCOUPLED WITH A PHASE TO TRANSLATE SIGNALS OF THE TRAP FREQUENCY RANGE AROUND SAID TERMINALS OF SAID SERIES TUNED CIRCUIT FOR CANCELLING SUCH SIGNAL AS TRANSLATED BETWEEN SAID TERMINALS.