Inductor switching circuit for tv tuner

Claim 1

IN A ROTARY TUNER WIDE BAND OSCILLATOR TUNING CIRCUIT ARRANGEMENT FOR A TELEVISION RECEIVER HAVING A ROTARY TUNER COMPRISING, IN COMBINATION, A FIRST TERMINAL AND A SECOND TERMINAL, A PLURALITY OF INDUCTORS CONNECTED IN AN ARBIRTARY NUMBER OF GROUPS, CONNECTIONS FOR EACH GROUP CONNECTING THE INDUCTORS IN EACH GROUP IN SERIES, AT LEAST ONE OF THE INDUCTORS IN EACH GROUP HAVING A VARIABLE INDUCTANCE, A PLURALITY OF STATIONARY CONTACTS CONNECTED TO RESPECTIVE GROUPS OF INDUCTORS AND EACH CONNECTED INDIVIDUALLY TO A RESPECTIVE JUNCTION BETWEEN A PAIR OF ADJACENT INDUCTORS OF A RESPECTIVE GROUP, CONNECTIONS FOR EACH GROUP CONNECTING EACH OF SAID GROUPS OF INDUCTORS IN COMMON TO SAID FIRST TERMINAL, A ROTARY TUNER CONTACT CONNECTED TO SAID SECOND TERMINAL OPERABLE SELECTIVELY INTO SEPARATE OPERATIVE POSITIONS TO MAKE ELECTRICAL CONTACT INDIVIDUALLY ALTERNATIVELY WITH SAID STATIONARY CONTACTS CONNECTED BETWEEN SAID INDUCTORS TO COMPLETE A CIRCUIT BETWEEN SAID FIRST AND SECOND TERMINALS ONLY THROUGH A GIVEN GROUP OF INDUCTORS CORRESPONDING TO THE GROUP TO WHICH THE STATIONARY CONTACT CONTACTED BY SAID ROTARY CONTACT BELONGS, WHEREBY SOLELY THE INDUCTANCE OF A RESPECTIVE GROUP OF INDUCTORS WHEN THE INDUCTANCE OF THE INDUCTOR HAVING A VARIABLE INDUCTANCE IN A GIVEN GROUP IS VARIED.