JPS57152797A - Electromagnetic type sound generator - Google Patents
Electromagnetic type sound generatorInfo
- Publication number
- JPS57152797A JPS57152797A JP3851981A JP3851981A JPS57152797A JP S57152797 A JPS57152797 A JP S57152797A JP 3851981 A JP3851981 A JP 3851981A JP 3851981 A JP3851981 A JP 3851981A JP S57152797 A JPS57152797 A JP S57152797A
- Authority
- JP
- Japan
- Prior art keywords
- magnet
- cylindrical magnet
- yoke
- wall
- cylindrical
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3851981A JPS57152797A (en) | 1981-03-17 | 1981-03-17 | Electromagnetic type sound generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3851981A JPS57152797A (en) | 1981-03-17 | 1981-03-17 | Electromagnetic type sound generator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57152797A true JPS57152797A (en) | 1982-09-21 |
Family
ID=12527514
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3851981A Pending JPS57152797A (en) | 1981-03-17 | 1981-03-17 | Electromagnetic type sound generator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57152797A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6094248U (ja) * | 1983-12-01 | 1985-06-27 | 藤原 忠正 | 消防用ホ−スの巻取案内器 |
-
1981
- 1981-03-17 JP JP3851981A patent/JPS57152797A/ja active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6094248U (ja) * | 1983-12-01 | 1985-06-27 | 藤原 忠正 | 消防用ホ−スの巻取案内器 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3469399D1 (en) | Loudspeaker with motional feedback | |
JPS57152797A (en) | Electromagnetic type sound generator | |
GB2022359A (en) | Geophone with shaped magnetic field | |
GB1408685A (en) | Electromagnets | |
ES270258U (es) | Un transductor electroacustico del tipo de bobina movil mejorado. | |
JPS57141838A (en) | Polarized electromagnetic relay | |
JPS57186312A (en) | Bistable keep solenoid | |
JPS5718200A (en) | Plane type loudspeaker | |
JPS579197A (en) | Speaker | |
JPS57151261A (en) | Linear motor | |
JPS567593A (en) | Magnetic circuit for flat diaphragm speaker | |
JPS56168499A (en) | Structure of electomagnetic sound generator | |
JPS5537066A (en) | Electricity-sound converter | |
JPS57196513A (en) | Choke coil of switching regulator or the like | |
JPS55125800A (en) | Sound body for watch | |
JPS5776805A (en) | Polarized solenoid | |
JPS5776804A (en) | Polarized solenoid | |
JPS5793168A (en) | Wire dot type printer head | |
JPS57208114A (en) | Electromagnet spool | |
JPS57137740A (en) | Flywheel | |
JPS5728563A (en) | Electromagnetic driving system and electromagnetic generating system | |
GB1002128A (en) | Improvements in and relating to electric-acoustic transducers | |
JPS579252A (en) | Magnetizing method for magnet of motor | |
DE3260766D1 (en) | Electro-acoustic transducer | |
JPS55121796A (en) | Mc-type pickup cartridge |