GB335340A - Improvements in and relating to electrical sound reproducing and recording instruments and apparatus - Google Patents
Improvements in and relating to electrical sound reproducing and recording instruments and apparatusInfo
- Publication number
- GB335340A GB335340A GB2556729A GB2556729A GB335340A GB 335340 A GB335340 A GB 335340A GB 2556729 A GB2556729 A GB 2556729A GB 2556729 A GB2556729 A GB 2556729A GB 335340 A GB335340 A GB 335340A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- coils
- speaker
- sound reproducing
- electrical sound
- 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.)
- Expired
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
- H04R3/00—Circuits for transducers, loudspeakers or microphones
- H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
Abstract
335,340. Brantom, H., Williams, H. G. Bawtree-, Bitton, E. A., and Storry, Ltd., H. A. Aug. 22, 1929. Drawings to Specification. Magnetic instruments. - An electromagnetic pick-up, microphone, recorder, or loud-speaker is provided with two or more separate and identical windings adapted to be connected in separate circuits, and to have equal and identical voltages induced in them, or magnetic fluxes produced by them, as the case may be. The coils may be wound simultaneously with two wires and are associated with two amplifiers in parallel or pushpull relationship which preferably feed a single two-coil loud-speaker. The pick-up described is otherwise of normal construction having an armature pivoted between two U-shaped pole-pieces surrounding the coils, and damped at its upper end by rubber blocks.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2556729A GB335340A (en) | 1929-08-22 | 1929-08-22 | Improvements in and relating to electrical sound reproducing and recording instruments and apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2556729A GB335340A (en) | 1929-08-22 | 1929-08-22 | Improvements in and relating to electrical sound reproducing and recording instruments and apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB335340A true GB335340A (en) | 1930-09-25 |
Family
ID=10229776
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2556729A Expired GB335340A (en) | 1929-08-22 | 1929-08-22 | Improvements in and relating to electrical sound reproducing and recording instruments and apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB335340A (en) |
-
1929
- 1929-08-22 GB GB2556729A patent/GB335340A/en not_active Expired
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