SIGNAL LEVEL ADJUSTING CIRCUIT

摘要

THE SIGNAL LEVEL ADJUSTING CIRCUIT HAS A VARIABLE INDUCTOR (4) AND COMPRISES SINGLETUNED CIRCUIT (8) ADAPTED TO VARY A TUNED FREQUENCY BY VARYING THE INDUCTANCE OF THE VARIABLE INDUCTOR (4).THE FREQUENCY OF A SIGNAL THAT IS TRANSMITTED THROUGH THE SINGLE-TUNED CIRCUIT (8) IS LOCATED IN A GRADIENT PORTION IN THE TUNING CHARACTERISTIC OF THE SINGLE-TUNED CIRCUIT.(FIG 1)