| 摘要 |
PURPOSE:To extend the amount of change of magnetic cores of a variable tuning section to a coil by two times, by providing an arm crossing lengthwise the reversing member, with the movable reversing member for a pair of transversal plates relatively moved laterally through the depression of the channel selection member. CONSTITUTION:When a push button 23 is depressed and a channel selection member 1 goes forward, a butted section 3a butts with a butted section 10a opposing to it at first, one transveral plate 9a moves left transverally and another transversal plate 9b moves relatively through the rotation of a reversing piece 13, and another butted section 10b butts with another butted section 3b opposing to it. At the both sides of the reversing section piece 13, an arm 15 leading at right angles to the lengthwise direction is provided incorporatedly, a pair of slide plates 20a, 20b are borne 22a with the arm 15 via levers 21a, 21b, a pair of magnetic cores 18a, 18b are moved relatively via the levers 21a, 21b with the transversal operation of the lateral plates 9a, 9b relatively, and the inductance of the tuning section is changed to achieve the channel selection. |
