| 摘要 |
PURPOSE:To prevent completely electrostatic noise at recording and reproduction by adopting the method grounding a magnetic core from a terminal conductor for the purpose of preventing electrostatic noise so as to ground surely the magnetic core. CONSTITUTION:Captions 1, 1' are magnetic core halves, their leg parts la, la' are inserted into an insertion hole 6b of a winding bobbin 6a and the other ends are assembled so as to be butted via a shim 10. Terminal conductors 7a, 7b are pressed into the winding bobbin 6a, each terminal of windings is connected to the conductors and further, a part 7c of the terminal conductor 7b is projected in the core insertion hole 6b, folded at the center as shown in figure and formed as a spring member having a proper elasticity. The spring part 7c of the terminal conductor 7b and the legs la, la' of the magnetic core are allowed to contact with each other in the core insertion hole 6b so as to be conducted electrically. The magnetic cores 1, 1' are grounded surely by connecting the terminal concuctor 7b to an earthing point of a recording and reproducing device (not shown in figure). |
