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JPS5710159Y2 |
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JPS579560B2 |
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JPS5726987A |
PURPOSE: To make stable the coupling state between an ear plug and an ear shell, by extending the ear plug to a direction with a slope to the oscillating direction of a diaphragm plate. CONSTITUTION: A diaphragm plate 1 is oscillated bas...
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JPS576880B2 |
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JPS5722796U |
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JPS57500223A |
PCT No. PCT/SU79/00122 Sec. 371 Date Aug. 26, 1980 Sec. 102(e) Date Aug. 21, 1980 PCT Filed Nov. 30, 1979 PCT Pub. No. WO80/01428 PCT Pub. Date Jul. 10, 1980.An electrodynamic pickup cartridge comprises two reproduction channels (1 and 2...
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JPS5720408A |
PURPOSE: To obtain a magnetic circuit which has small size, light weight, excellent frequency characteristic and high output voltage by melting Fe-Co-Si alloy containing Fe as main ingredient when forming a yoke forming the magnetic circ...
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JPS5714276A |
PURPOSE: To allow the detection of oscillation through the output of an oscillation circuit changed with the oscillation of an oscillation plate, by locating a coil forming a resonance circuit in the oscillation circuit to an oscillation...
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JPS5654714Y2 |
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JPS56167699U |
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JPS5651559B2 |
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JPS56153900A |
PURPOSE: To reduce the magnetic loss very much, by winding the coil around the pole piece consisting of the round bar material directly to reduce the magnetic impedance between the pole piece and the coil. CONSTITUTION: The magnetic circ...
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JPS5650553Y2 |
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JPS5647759B2 |
A transducer comprises a body including a permanent magnet having a pair of pole pieces which define a magnetic gap therebetween, and a stylus assembly including a pair of coils which are positioned within the magnetic gap. The stylus as...
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JPS5647760B2 |
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JPS56143799A |
PURPOSE: To detect a less distortion signal while widening the range by miniaturizing a vibration system by interposing signal detection coils at an interval between magnetic pole pieces projecting from both magnetic poles of a moving ma...
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JPS56141698A |
PURPOSE: To sufficiently take a clearance between the surface of a record and the cartridge, and secure a vertical tracking angle, by providing no magnet nor coil on the surface of a record. CONSTITUTION: A moving magnet 14 which has bee...
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JPS56128797U |
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JPS5638879Y2 |
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JPS5696599A |
A method of making an acoustic transducer for telephones consists of securing the magnet assembly and the armature supporting ring inside the plastic casing of the transducer and then surrounding or partly surrounding these with a thermo...
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JPS5690098U |
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JPS5630778B2 |
A limited rotation electromechanical torsional oscillator for driving a mirror in an optical deflection system. A drive armature is mounted on a torsion bar at the opposite end from the torsion bar support. The ends of the armature lie i...
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JPS5687799U |
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JPS5685995A |
PURPOSE: To obtain a large magnetic flux variation and a very flat characteristic, by using a fixed magnet jointly, to make its constitution unique, and using an air core coil. CONSTITUTION: A moving magnet 3 is fixed to the base end of ...
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JPS5684100A |
PURPOSE: To lighten a vibration system and to increase an output by arranging two E-shaped magnetic structures on the nonmagnetic substance armature of a moving magnet type pickup cartridge. CONSTITUTION: At the base end of cantilever 2,...
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JPS5683199A |
PURPOSE: To make the weight of an entire cartridge light in weight, by the constitution of a magnet magnetized lengthwise a sensing lever so that it is located at the center of armature. CONSTITUTION: The magnet 1B demagnetized lengthwis...
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JPS5678300A |
PURPOSE: To stabilize a mechanical strain and performance by improving the strength of a yoke and an assemblage by inserting a yoke end part wound with a coil into the concave part of the yoke for forming a magnetic gap between those yok...
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JPS5668394U |
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JPS5661895A |
PURPOSE: To prevent unbalance in characteristics between both right and left channels, by employing the structure where both channels are completely equal in magnetic path length and symmetric. CONSTITUTION: The vibration part consists o...
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JPS5658700U |
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JPS5657590U |
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JPS5657591U |
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JPS5657593U |
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JPS5657594U |
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JPS5620760B1 |
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JPS5656297U |
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JPS5653891U |
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JPS5652999A |
A magnetic phonograph pick-up cartridge having a fixed assembly portion and a replaceable assembly portion wherein the replaceable portion includes self-contained, longitudinally-extending stylus pole pieces surrounding a pivotally mount...
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JPS5652396U |
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JPS5646392A |
PURPOSE: To make suitable the generated voltage, by enabling to adjust the position of the armature of the cunti-lever end to avoid the level difference due to the polarity of generated voltage. CONSTITUTION: The end of the cunti-lever 2...
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JPS5635600A |
PURPOSE: To increase the power generating efficiency as well as the response property, by providing the fixed magnet in addition to the mobile magnet and then inducing the voltage to the coil with the magnetic flux flowing between the bo...
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JPS5635595A |
A magnetic stereophonic phono cartridge having a replaceable stylus unit. The stylus unit comprises a support body including an armature of permeance material provided with a stylus arm with a stylus at the free end thereof, the armature...
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JPS5634300A |
Electroacoustic devices are disclosed which comprise a permanent magnet and a magnetically permeable component. The permanent magnet is made of an Fe-Cr-Co alloy comprising 20-40 weight percent Cr and 3-30 weight percent Co; the permeabl...
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JPS5626498U |
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JPS5623099A |
An electroacoustic transducer is disclosed which is small in size so as to allow its use in hearing aids or like structure, but which maintains the performance characteristics of larger transducers. The transducer minimizes its cross-sec...
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JPS568316Y2 |
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JPS5620000U |
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JPS5614798A |
PURPOSE: To improve performance and to reduce cost by forming magnetic circuits with a common magnetic gap by using two magnetic cores that have the magnetic gap extending in parallel to a center axis and then by combining those two magn...
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JPS5613899A |
PURPOSE: To obtain a pickup having a high output sensitivity and high SN ratio, by decreasing the effective mass of the vibrator. CONSTITUTION: Mobile iron bar 3 attached to the other end of cantilever 2 having stylus tip 1 at the tip pa...
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JPS5613900A |
PURPOSE: To increase the reproduction limit frequency at the high range as well as reduce the high frequency distortion of the cross modulation distortion , by using the plate-type armature having a small length/diameter ratio. CONSTITUT...
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