GB788543A - Improvements in or relating to apparatus for reproducing sound from audio-frequency electrical signals - Google Patents
Improvements in or relating to apparatus for reproducing sound from audio-frequency electrical signalsInfo
- Publication number
- GB788543A GB788543A GB2499654A GB2499654A GB788543A GB 788543 A GB788543 A GB 788543A GB 2499654 A GB2499654 A GB 2499654A GB 2499654 A GB2499654 A GB 2499654A GB 788543 A GB788543 A GB 788543A
- Authority
- GB
- United Kingdom
- Prior art keywords
- audio
- relating
- electrical signals
- frequency electrical
- reproducing 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
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
- H04R3/14—Cross-over networks
Landscapes
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Stereophonic System (AREA)
- Circuit For Audible Band Transducer (AREA)
Abstract
788,543. Reproducing music. GRIFFIN, A. A. Oct. 25, 1955 [Aug. 27, 1954], No. 24996/54. Class 40 (4). In a circuit arrangement for feeding a " woofer " and a " tweeter," a signal applied to condenser 19 produces two signals in antiphase in channels 22, 23. The channels include tetrode amplifiers 27, 32 feeding output transformers 36, 39 and the base frequencies are substantially removed from the treble channel 22 by a condenser 24 of small capacity.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2499654A GB788543A (en) | 1954-08-27 | 1954-08-27 | Improvements in or relating to apparatus for reproducing sound from audio-frequency electrical signals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2499654A GB788543A (en) | 1954-08-27 | 1954-08-27 | Improvements in or relating to apparatus for reproducing sound from audio-frequency electrical signals |
Publications (1)
Publication Number | Publication Date |
---|---|
GB788543A true GB788543A (en) | 1958-01-02 |
Family
ID=10220540
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2499654A Expired GB788543A (en) | 1954-08-27 | 1954-08-27 | Improvements in or relating to apparatus for reproducing sound from audio-frequency electrical signals |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB788543A (en) |
-
1954
- 1954-08-27 GB GB2499654A patent/GB788543A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB622401A (en) | Improvements in or relating to stereophonic reproduction apparatus | |
JPS573498A (en) | Multiway speaker device | |
GB788543A (en) | Improvements in or relating to apparatus for reproducing sound from audio-frequency electrical signals | |
GB1082738A (en) | Cow bell instrument | |
GB297308A (en) | Improvements in or connected with sound reproducing | |
US3110770A (en) | Apparatus for use in stethoscopy | |
GB817773A (en) | Improvements in or relating to sound transmitting apparatus | |
GB996579A (en) | Improvements in directional sound-receiving apparatus | |
GB717210A (en) | Improvements in or relating to method and apparatus for increasing the fidelity of asound reproducing system | |
JPS5441102A (en) | Signal converting circuit | |
US3020345A (en) | Amplifying arrangement for stereophonic reproduction | |
GB852707A (en) | Improvements in cabinets for sound reproduction systems | |
GB966983A (en) | Improvements in or relating to stereophonic sound reproducing apparatus | |
ES256673A1 (en) | Arrangement for the stereophonic reproduction of signals | |
GB1307074A (en) | Automatic volume control system for multichannel amplifier | |
GB861321A (en) | Improvements relating to audio frequency amplifiers | |
US1971894A (en) | Broadcast receiver apparatus | |
GB924499A (en) | Amplifier for two-channel transmission | |
GB967064A (en) | Improvements relating to stereophonic sound reproducing apparatus | |
GB636993A (en) | Improvements in or relating to sound recording and reproducing apparatus | |
SE316804B (en) | ||
AU213039B2 (en) | Improved circuit for reducing hum in audio frequency amplifiers | |
GB932738A (en) | Improvements in or relating to sound reproduction apparatus | |
ES256681A1 (en) | A provision for the stereo phonic reproduction of signals (Machine-translation by Google Translate, not legally binding) | |
GB1224784A (en) | Headphone type amplifier, especially for sound amplification of electric musical instruments |