GB888318A - Improvements in or relating to audio-frequency amplifiers - Google Patents
Improvements in or relating to audio-frequency amplifiersInfo
- Publication number
- GB888318A GB888318A GB3736359A GB3736359A GB888318A GB 888318 A GB888318 A GB 888318A GB 3736359 A GB3736359 A GB 3736359A GB 3736359 A GB3736359 A GB 3736359A GB 888318 A GB888318 A GB 888318A
- Authority
- GB
- United Kingdom
- Prior art keywords
- audio
- relating
- frequency amplifiers
- amplifier
- plug
- 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
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
- H03F1/52—Circuit arrangements for protecting such amplifiers
- H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
888,318. Valve amplifying circuits. COLE Ltd., E. K., and WOODHALL, N. M. Jan. 12, 1961 [Nov. 4, 1959], No. 37363/59. Class 40(6). In an amplifier in which the loud-speaker is connected by means of a plug and socket P, S, removal of the plug P breaks a short circuit across resistor R1. The valve V1 preceding the output stage is then biased to cutoff by a cathode bias derived from resistors R1, R2 so preventing damage to the output stage if the amplifier is operated in this condition.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3736359A GB888318A (en) | 1959-11-04 | 1959-11-04 | Improvements in or relating to audio-frequency amplifiers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3736359A GB888318A (en) | 1959-11-04 | 1959-11-04 | Improvements in or relating to audio-frequency amplifiers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB888318A true GB888318A (en) | 1962-01-31 |
Family
ID=10395893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3736359A Expired GB888318A (en) | 1959-11-04 | 1959-11-04 | Improvements in or relating to audio-frequency amplifiers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB888318A (en) |
-
1959
- 1959-11-04 GB GB3736359A patent/GB888318A/en not_active Expired
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