GB533558A - Improvements in high frequency amplifiers including thermionic valves - Google Patents
Improvements in high frequency amplifiers including thermionic valvesInfo
- Publication number
- GB533558A GB533558A GB29591/39A GB2959139A GB533558A GB 533558 A GB533558 A GB 533558A GB 29591/39 A GB29591/39 A GB 29591/39A GB 2959139 A GB2959139 A GB 2959139A GB 533558 A GB533558 A GB 533558A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inductance
- cathode
- anodes
- auxiliary
- valve
- 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
- H03F1/08—Modifications of amplifiers to reduce detrimental influences of internal impedances of amplifying elements
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Amplifiers (AREA)
- Particle Accelerators (AREA)
Abstract
533,558. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., and ALDOUS, W. H. Nov. 7, 1939, Nos. 29591/39 and 13188/40. [Classes 39 (i) and 40 (v)] In a high frequency amplifier, operating at 10 Mc. or higher frequency, a valve having an accelerating grid is used and a subsidiary anode is provided drawing current through the control grid but not through the accelerating grid. An inductance is provided in series with the auxiliary anode to cancel the component of input conductance due to the inductance in the cathode lead. Fig. 2 shows an arrangement in which the inductance, in the auxiliary anode lead, LA = LK. Sa+SA/SA. CKC/CAC, where LK is the inductance in the cathode lead, SA, Sa the mutual conductance to the auxiliary and main anodes, respectively, and CKC, CAC the effective control grid-cathode and auxiliary anode capacities respectively. In a push-pull amplifier, Fig. 4, two subsidiary anodes are provided, each drawing current from the common cathode 2 through one of the control grids and fed through a compensating inductance so adjusted as to reduce the loss in efficiency due to the finite transit time of the electrons. To prevent increase in shot noise separate bands of activating material in the cathode may be provided for the auxiliary anodes. The inductances associated with the anodes may be arranged either inside or outside the valve.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB29591/39A GB533558A (en) | 1939-11-07 | 1939-11-07 | Improvements in high frequency amplifiers including thermionic valves |
US358223A US2294328A (en) | 1939-11-07 | 1940-09-25 | Ultra-high-frequency signal-translating stage |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB29591/39A GB533558A (en) | 1939-11-07 | 1939-11-07 | Improvements in high frequency amplifiers including thermionic valves |
Publications (1)
Publication Number | Publication Date |
---|---|
GB533558A true GB533558A (en) | 1941-02-14 |
Family
ID=10293954
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB29591/39A Expired GB533558A (en) | 1939-11-07 | 1939-11-07 | Improvements in high frequency amplifiers including thermionic valves |
Country Status (2)
Country | Link |
---|---|
US (1) | US2294328A (en) |
GB (1) | GB533558A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1087183B (en) * | 1956-08-24 | 1960-08-18 | Philips Patentverwaltung | Self-oscillating, additive mixer stage |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2523403A (en) * | 1942-11-13 | 1950-09-26 | Hartford Nat Bank & Trust Co | Negative feedback amplifier, including automatic volume control |
BE474392A (en) * | 1946-06-22 | |||
US2531277A (en) * | 1947-03-07 | 1950-11-21 | Hartford Nat Bank & Trust Co | Electric discharge device for the amplification of short waves |
NL73973C (en) * | 1947-04-09 | 1954-06-15 | ||
US3406265A (en) * | 1964-12-14 | 1968-10-15 | Bell Telephone Labor Inc | Repeater with power separation filters and with neutralization networks connected to a common terminal of signal and power channels |
-
1939
- 1939-11-07 GB GB29591/39A patent/GB533558A/en not_active Expired
-
1940
- 1940-09-25 US US358223A patent/US2294328A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1087183B (en) * | 1956-08-24 | 1960-08-18 | Philips Patentverwaltung | Self-oscillating, additive mixer stage |
Also Published As
Publication number | Publication date |
---|---|
US2294328A (en) | 1942-08-25 |
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