GB666489A - Improvements in or relating to thermionic valve amplifiers - Google Patents

Improvements in or relating to thermionic valve amplifiers

Info

Publication number
GB666489A
GB666489A GB5959/48A GB595948A GB666489A GB 666489 A GB666489 A GB 666489A GB 5959/48 A GB5959/48 A GB 5959/48A GB 595948 A GB595948 A GB 595948A GB 666489 A GB666489 A GB 666489A
Authority
GB
United Kingdom
Prior art keywords
stages
bandwidth
pair
tuned
centre frequency
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
GB5959/48A
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.)
US Department of Commerce
Original Assignee
US Department of Commerce
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 US Department of Commerce filed Critical US Department of Commerce
Publication of GB666489A publication Critical patent/GB666489A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0138—Electrical filters or coupling circuits
    • H03H7/0146—Coupling circuits between two tubes, not otherwise provided for
    • 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
    • H03F1/42—Modifications of amplifiers to extend the bandwidth
    • H03F1/48—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers
    • H03F1/50—Modifications of amplifiers to extend the bandwidth of aperiodic amplifiers with tubes only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1775—Parallel LC in shunt or branch path

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

666,489. Valve amplifying circuits. DEPARTMENT OF COMMERCE, DIRECTOR OF THE OFFICE OF TECHNICAL SERVICES OF. Feb. 27, 1948 [Aug. 30, 1945], No. 5959/48. Drawings to Specification. Class 40 (vi). A valve amplifier, particularly for intermediate frequencies, with bandwidth #f and centre frequency f o comprises n stages, each tuned by a single resonant circuit and associated in pairs. The stages of a pair have a bandwidth equal to and are tuned above and below the centre frequency f o by where k is an odd integer associated with the pair. When the ratio #f/f o =# (bandwidth/ centre frequency) is not negligibly small, the stages of each pair are tuned to frequencies f o α k and fo/α k and each has a Q-value equal to 1 -, where d k and k is an odd integer between 1 and n-1 associated with the pair. If the number of stages should be odd, one stage'is tuned to the centre frequency f o and has bandwidth #f. The Specification includes tables of desired bandwidth and staggering for different numbers of stages.
GB5959/48A 1945-08-30 1948-02-27 Improvements in or relating to thermionic valve amplifiers Expired GB666489A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US613605A US2451893A (en) 1945-08-30 1945-08-30 Stagger tuned amplifier

Publications (1)

Publication Number Publication Date
GB666489A true GB666489A (en) 1952-02-13

Family

ID=24457958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5959/48A Expired GB666489A (en) 1945-08-30 1948-02-27 Improvements in or relating to thermionic valve amplifiers

Country Status (2)

Country Link
US (1) US2451893A (en)
GB (1) GB666489A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2668881A (en) * 1949-12-27 1954-02-09 Bendix Aviat Corp Maximum gain-bandwidth amplifier system
US3296545A (en) * 1964-05-27 1967-01-03 John R Hicks Stagger-tuned audio amplifier
JP5319006B2 (en) * 2012-10-10 2013-10-16 ルネサスエレクトロニクス株式会社 Power amplifier circuit

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1438828A (en) * 1920-03-29 1922-12-12 Harry W Houck Method and apparatus for selectively transferring electrical oscillatory energy
BE428065A (en) * 1937-05-13

Also Published As

Publication number Publication date
US2451893A (en) 1948-10-19

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