GB466404A - Improvements in electric valve amplifying systems - Google Patents
Improvements in electric valve amplifying systemsInfo
- Publication number
- GB466404A GB466404A GB35121/36A GB3512136A GB466404A GB 466404 A GB466404 A GB 466404A GB 35121/36 A GB35121/36 A GB 35121/36A GB 3512136 A GB3512136 A GB 3512136A GB 466404 A GB466404 A GB 466404A
- Authority
- GB
- United Kingdom
- Prior art keywords
- valve
- transformer
- dec
- amplifier
- class
- 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
- H03F1/34—Negative-feedback-circuit arrangements with or without positive feedback
- H03F1/36—Negative-feedback-circuit arrangements with or without positive feedback in discharge-tube amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
Abstract
466,404. Valve amplifying circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Dec. 21,1936, No. 35121. Convention date, Dec. 23, 1935. [Class 40 (v)] In an amplifier in which a loud-speaker or other load 13 is coupled to the output valve 2 by a transformer 8, negative feed-back is pro vided for minimizing distortion by including the load, or a part thereof, in the cathode lead 5 of an earlier valve 1 of the amplifier. Alternatively, the reaction may be provided by a third winding on the transformer 8, or by a tapping on a potentiometer connected across the transformer secondary coil. The poten- 'tiometer may comprise an inductance coil or a capacity to produce frequency discrimination. The ratio of the output voltage of the valve 2 to the feed-back voltage should be large compared with the voltage amplification of the valve stages. Specification 323,823, [Class 40 (v)], is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP2071D DE1080611B (en) | 1935-12-23 | 1935-12-23 | Counter-coupled low-frequency amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB466404A true GB466404A (en) | 1937-05-27 |
Family
ID=7357710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB35121/36A Expired GB466404A (en) | 1935-12-23 | 1936-12-21 | Improvements in electric valve amplifying systems |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2212850A (en) |
| BE (1) | BE419102A (en) |
| DE (1) | DE1080611B (en) |
| FR (1) | FR815344A (en) |
| GB (1) | GB466404A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3071735A (en) * | 1959-06-04 | 1963-01-01 | Blonder Tongue Elect | Phase-shift-reducing apparatus |
-
0
- BE BE419102D patent/BE419102A/xx unknown
-
1935
- 1935-12-23 DE DEP2071D patent/DE1080611B/en active Pending
-
1936
- 1936-09-24 US US102274A patent/US2212850A/en not_active Expired - Lifetime
- 1936-12-21 GB GB35121/36A patent/GB466404A/en not_active Expired
- 1936-12-22 FR FR815344D patent/FR815344A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR815344A (en) | 1937-07-09 |
| BE419102A (en) | |
| US2212850A (en) | 1940-08-27 |
| DE1080611B (en) | 1960-04-28 |
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