CH457558A - Condenser microphone device with audio frequency amplifier - Google Patents
Condenser microphone device with audio frequency amplifierInfo
- Publication number
- CH457558A CH457558A CH1153366A CH1153366A CH457558A CH 457558 A CH457558 A CH 457558A CH 1153366 A CH1153366 A CH 1153366A CH 1153366 A CH1153366 A CH 1153366A CH 457558 A CH457558 A CH 457558A
- Authority
- CH
- Switzerland
- Prior art keywords
- audio frequency
- frequency amplifier
- microphone device
- condenser microphone
- condenser
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
- H03F3/185—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices
- H03F3/1855—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only with field-effect devices with junction-FET devices
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
- H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/04—Microphones
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
- Circuit For Audible Band Transducer (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3472865A GB1104122A (en) | 1965-08-13 | 1965-08-13 | Improvements in or relating to capacitor microphone and amplifier combinations |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH457558A true CH457558A (en) | 1968-06-15 |
Family
ID=10369242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1153366A CH457558A (en) | 1965-08-13 | 1966-08-10 | Condenser microphone device with audio frequency amplifier |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH457558A (en) |
| DE (1) | DE1291379B (en) |
| GB (1) | GB1104122A (en) |
-
1965
- 1965-08-13 GB GB3472865A patent/GB1104122A/en not_active Expired
-
1966
- 1966-07-23 DE DE1966I0031391 patent/DE1291379B/en active Pending
- 1966-08-10 CH CH1153366A patent/CH457558A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB1104122A (en) | 1968-02-21 |
| DE1291379B (en) | 1969-03-27 |
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