GB533558A - Improvements in high frequency amplifiers including thermionic valves - Google Patents

Improvements in high frequency amplifiers including thermionic valves

Info

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
Application number
GB29591/39A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB29591/39A priority Critical patent/GB533558A/en
Priority to US358223A priority patent/US2294328A/en
Publication of GB533558A publication Critical patent/GB533558A/en
Expired legal-status Critical Current

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)
  • Particle Accelerators (AREA)
  • Amplifiers (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.
GB29591/39A 1939-11-07 1939-11-07 Improvements in high frequency amplifiers including thermionic valves Expired GB533558A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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