Vehicular radio receiver for both amplitude and frequency modulation reception

Claim 1

IN A VEHICULAR RADIO RECEIVER CAPABLE OF SELECTIVELY RECEIVING BOTH AMPLITUDE AND FREQUENCY MODULATED SIGNALS AND INCLUDING A SOUND TRANSDUCER, AMPLIFICATION MEANS FOR DRIVING SAID SOUND TRANSDUCER; AND AN ANTENNA CIRCUIT A FREQUENCY MODULATING TUNER INCLUDING A TUNED RADIO FREQUENCY AMPLIFIER WITH A FIRST TRANSISTOR, FREQUENCY CONVERSION MEANS INCLUDING A SECOND TRANSISTOR, A PLURALITY OF INTERMEDIATE FREQUENCY APPLIFICATION STAGES, LIMITING AND DETECTING MEANS; AN AMPLITUDE MODULATION TUNER INCLUDING A RADIO FREQUENCY STAGE, A CONVERTER STAGE AND AN INTERMEDIATE FREQUENCY AMPLIFICATION STAGE, EACH OF WHICH SHARES AN ACTIVE ELEMENT WITH ONE OF SAID FREQUENCY MODULATION INTERMEDIATE FREQUENCY AMPLIFICATION STAGES, AND A DETECTOR, AND SWITCHING MEANS FOR SWITCHING BETWEEN SAID FREQUENCY MODULATION TUNER AND SAID AMPLITUDE MODULATION TUNER COMPRISING A PLURALITY OF MECHANICALLY INTERCONNECTED SWITCH ELEMENTS INCLUDING A FIRST ELEMENT WHICH WHEN IN A FIRST POSITION CAUSES THE ENTIRE OUTPUT OF THE ANTENNA CIRCUIT TO BE SUPPLIED TO THE RADIO FREQUENCY AMPLIFIER OF SAID FREQUENCY MODULATION TUNER AND WHEN IN A SECOND POSITION CAUSES THE OUTPUT OF SAID ANTENNA CIRCUIT TO BE SUPPLIED TO SAID AMPLITUDE MODULATION RADIO FREQUENCY STAGE, A SECOND ELEMENT WHICH WHEN IN A FIRST POSITION CAUSES THE OUTPUT OF ONE OF SAID FREQUENCY MODULATION INTERMEDIATE FREQUENCY STAGES TO BE DEVELOPED ACROSS THE PRIMARY WINDING OF THE SUCCEEDING FREQUENCY MODULATION INTERSTAGE TRANSFORMER AND WHEN IN A SECOND POSITION GROUNDS THE OUTPUT OF SAID SECOND TRANSISTOR, AND A THIRD ELEMENT WHICH WHEN IN ONE POSITION CONNECTS SAID FREQUENCY MODULATION DETECTOR TO SAID AMPLIFICATION MEANS AND WHEN IN ANOTHER POSITION CONNECTS SAID AMPLITUDE MODULATION DETECTOR TO SAID AMPLIFICATION MEANS.