GB554371A - Improvements in or relating to noise reducing arrangements for discharge tube amplifiers - Google Patents

Improvements in or relating to noise reducing arrangements for discharge tube amplifiers

Info

Publication number
GB554371A
GB554371A GB7199/41A GB719941A GB554371A GB 554371 A GB554371 A GB 554371A GB 7199/41 A GB7199/41 A GB 7199/41A GB 719941 A GB719941 A GB 719941A GB 554371 A GB554371 A GB 554371A
Authority
GB
United Kingdom
Prior art keywords
relating
discharge tube
noise reducing
tube amplifiers
reducing arrangements
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
GB7199/41A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB554371A publication Critical patent/GB554371A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/02—Manually-operated control
    • H03G5/04—Manually-operated control in untuned amplifiers
    • H03G5/06—Manually-operated control in untuned amplifiers having discharge tubes
    • 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)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • General Details Of Gearings (AREA)
  • Retarders (AREA)
  • Amplifiers (AREA)

Abstract

554,371. Thermionic valves and circuits therefor. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). June 6. 1941, No. 7199. Drawings to Specification. [Classes 39 (i) and 40 (v)] The subject-matter of this Specification is described in Specifications 645,936, 645,989 and 645,990, [all in Group XL (c)]. Reference has been directed by the Comptroller to Specifications 27768/39 (as open to inspection under Sect. 91), 478,194, 534,104 and 537,900.
GB7199/41A 1940-01-31 1941-06-06 Improvements in or relating to noise reducing arrangements for discharge tube amplifiers Expired GB554371A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL645936X 1940-01-31

Publications (1)

Publication Number Publication Date
GB554371A true GB554371A (en) 1943-07-01

Family

ID=19791925

Family Applications (2)

Application Number Title Priority Date Filing Date
GB7199/41A Expired GB554371A (en) 1940-01-31 1941-06-06 Improvements in or relating to noise reducing arrangements for discharge tube amplifiers
GB22915/46A Expired GB645936A (en) 1940-01-31 1946-08-01 Improvements in or relating to high-frequency electric receivers and amplifiers

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB22915/46A Expired GB645936A (en) 1940-01-31 1946-08-01 Improvements in or relating to high-frequency electric receivers and amplifiers

Country Status (2)

Country Link
GB (2) GB554371A (en)
NL (1) NL144437B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547235A (en) * 1940-01-31 1951-04-03 Hartford Nat Bank & Trust Co High-frequency amplifier, including a velocity modulation tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2547235A (en) * 1940-01-31 1951-04-03 Hartford Nat Bank & Trust Co High-frequency amplifier, including a velocity modulation tube

Also Published As

Publication number Publication date
GB645936A (en) 1950-11-15
NL144437B (en)

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