BE495623A - - Google Patents
Info
- Publication number
- BE495623A BE495623A BE495623DA BE495623A BE 495623 A BE495623 A BE 495623A BE 495623D A BE495623D A BE 495623DA BE 495623 A BE495623 A BE 495623A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/04—Construction, mounting, or centering of coil
- H04R9/041—Centering
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/022—Cooling arrangements
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE286905X | 1950-02-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE495623A true BE495623A (https=) |
Family
ID=6059162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE495623D BE495623A (https=) | 1950-02-22 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE495623A (https=) |
| CH (1) | CH286905A (https=) |
| FR (1) | FR1017147A (https=) |
| GB (1) | GB683832A (https=) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3991286A (en) * | 1975-06-02 | 1976-11-09 | Altec Corporation | Heat dissipating device for loudspeaker voice coil |
| CN109246562B (zh) * | 2018-09-21 | 2020-08-25 | 歌尔股份有限公司 | 微型发声装置 |
-
0
- BE BE495623D patent/BE495623A/xx unknown
-
1950
- 1950-05-01 CH CH286905D patent/CH286905A/de unknown
- 1950-05-05 GB GB11142/50A patent/GB683832A/en not_active Expired
- 1950-05-05 FR FR1017147D patent/FR1017147A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB683832A (en) | 1952-12-03 |
| FR1017147A (fr) | 1952-12-02 |
| CH286905A (de) | 1952-11-15 |