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JPS537202A |
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JPS53284B2 |
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JPS52170003U |
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JPS5256006Y2 |
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JPS52151004A |
PURPOSE: To form a transducer to make the construction simply by employing magnetic material which varies the direction of spontaneous magnetization by 90' by temperature change.
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JPS52164502U |
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JPS52164501U |
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JPS52161603U |
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JPS5252564Y2 |
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JPS5246082B1 |
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JPS5244201B1 |
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JPS52125302A |
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JPS5240961B2 |
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JPS52121302A |
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JPS52109905A |
PURPOSE: To reduce magnetic flux leakage and improve frequency characteristics in an electromagnetic type pick-up cartridge by disposing a copper plate between a pole piece base and a shield case.
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JPS52118602U |
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JPS5233487B2 |
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JPS52105402U |
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JPS5229171B2 |
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JPS5228685B2 |
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JPS5228684B2 |
A record pickup is comprised of a magnetic yoke with parallel first and second leg portions. The first leg portion supports a coil. The second leg portion has a bore which resiliently supports a conductive bar opposite the coil. The cond...
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JPS5228683B2 |
A gramophone or phono pickup comprising two magnetic systems, which are rotatable concentrically to a permanent magnetic armature, which is the transducer element and supports the needle arm. Two U-shaped iron cores with windings thereon...
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JPS5288304A |
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JPS5232165Y2 |
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JPS5230891Y2 |
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JPS5229624Y2 |
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JPS5224842B1 |
An electroacoustic transducer of the magnetic-armature type including improved pivot mounting means for the armature. Elongated legs extend from the pivot end of the armature and provide a torsional force tending to restore the armature ...
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JPS5225124Y2 |
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JPS5269904U |
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JPS5269204U |
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JPS5253404A |
PURPOSE: To eliminate the need for magnetic flux yokes and eliminate magnetic loss and magnetic strain owing to magnetic flux yokes by fixing a styles to one end of a cantiever and a permanent magnet to the other end and providing a wire...
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JPS5214406Y2 |
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JPS5214407Y2 |
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JPS5241502A |
PURPOSE: Reproduce high fidelity sound and make magnet strong and compact.
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JPS5211205B2 |
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JPS5225602A |
PURPOSE: By letting armature magnet that is coupled to a cantilever vibrate within the magnetic flux which is produced by coils placed in perpendicular directions, to enable high precision and effective reproduction with a pickup of high...
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JPS5221802U |
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JPS5220201U |
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JPS5217802A |
An electromagnetic or magnetodynamic transducer-sound pickup comprises a phonograph needle which is connected to either a permanent magnet or a soft iron magnetic member and which is mounted for oscillation in front of, or between a plur...
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JPS5219219U |
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JPS5218003U |
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JPS5218002U |
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JPS5215203U |
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JPS5215204U |
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JPS523282B1 |
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JPS527201A |
PURPOSE: To improve the output voltage without a booster transformer by increasing the winding number of coil by dividing the coil body into two parts and winding a coil in only one direction.
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JPS521286B2 |
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JPS51150301A |
PURPOSE: Vibrator is clamped by two dampers and supported at its front outskirts and front center so as to reduce variation of supporting point of vibration.
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JPS51143301A |
PURPOSE: To reduce cross modulation and non-direct distortion due to vertical tracking error.
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JPS51138401A |
PURPOSE: To provide a pickup cartridge which has less crosstalk produced by high band frequency resonace with a generating coil for compensating the crosstalk.
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