AT287814B - Vorverstärker für Schallempfänger, insbesondere für kapazitive Wandler - Google Patents
Vorverstärker für Schallempfänger, insbesondere für kapazitive WandlerInfo
- Publication number
- AT287814B AT287814B AT652068A AT652068A AT287814B AT 287814 B AT287814 B AT 287814B AT 652068 A AT652068 A AT 652068A AT 652068 A AT652068 A AT 652068A AT 287814 B AT287814 B AT 287814B
- Authority
- AT
- Austria
- Prior art keywords
- preamplifier
- sound receivers
- capacitive converters
- converters
- capacitive
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT652068A AT287814B (de) | 1968-07-05 | 1968-07-05 | Vorverstärker für Schallempfänger, insbesondere für kapazitive Wandler |
DE19691930676 DE1930676A1 (de) | 1968-07-05 | 1969-06-18 | Vorverstaerker fuer Schallempfaenger,insbesondere fuer kapazitive Wandler |
US838091A US3595998A (en) | 1968-07-05 | 1969-07-01 | Polarity independent preamplifier for sound transmitters |
GB33422/69A GB1261070A (en) | 1968-07-05 | 1969-07-02 | Improvements in or relating to amplifier circuits |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT652068A AT287814B (de) | 1968-07-05 | 1968-07-05 | Vorverstärker für Schallempfänger, insbesondere für kapazitive Wandler |
Publications (1)
Publication Number | Publication Date |
---|---|
AT287814B true AT287814B (de) | 1971-02-10 |
Family
ID=3587141
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT652068A AT287814B (de) | 1968-07-05 | 1968-07-05 | Vorverstärker für Schallempfänger, insbesondere für kapazitive Wandler |
Country Status (4)
Country | Link |
---|---|
US (1) | US3595998A (de) |
AT (1) | AT287814B (de) |
DE (1) | DE1930676A1 (de) |
GB (1) | GB1261070A (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3706852A (en) * | 1971-01-04 | 1972-12-19 | Mc Graw Edison Co | Quiet turn-on circuit for carbon microphones |
US4774477A (en) * | 1987-03-18 | 1988-09-27 | Rockwell International Corporation | Power amplifier having low intermodulation distortion |
US5097224A (en) * | 1991-04-11 | 1992-03-17 | Telex Communications, Inc. | Self-biasing, low noise amplifier of extended dynamic range |
US6577187B1 (en) | 2000-06-15 | 2003-06-10 | Upstate Audio | Powered transducer preamplifier with DC level shifting circuit |
DK1374392T3 (da) * | 2001-03-26 | 2006-05-22 | Neumann Gmbh Georg | Forstærkerkredslöb |
JP3890301B2 (ja) * | 2003-01-15 | 2007-03-07 | 株式会社オーディオテクニカ | コンデンサマイクロホン |
-
1968
- 1968-07-05 AT AT652068A patent/AT287814B/de not_active IP Right Cessation
-
1969
- 1969-06-18 DE DE19691930676 patent/DE1930676A1/de active Pending
- 1969-07-01 US US838091A patent/US3595998A/en not_active Expired - Lifetime
- 1969-07-02 GB GB33422/69A patent/GB1261070A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB1261070A (en) | 1972-01-19 |
DE1930676A1 (de) | 1970-01-08 |
US3595998A (en) | 1971-07-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ELJ | Ceased due to non-payment of the annual fee |