GB529456A - Improvements in duplex vacuum-tube repeaters - Google Patents

Improvements in duplex vacuum-tube repeaters

Info

Publication number
GB529456A
GB529456A GB15760/39A GB1576039A GB529456A GB 529456 A GB529456 A GB 529456A GB 15760/39 A GB15760/39 A GB 15760/39A GB 1576039 A GB1576039 A GB 1576039A GB 529456 A GB529456 A GB 529456A
Authority
GB
United Kingdom
Prior art keywords
grid
grids
valve
taken
screen
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
GB15760/39A
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.)
BAE Systems Aerospace Inc
Original Assignee
Hazeltine Corp
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 Hazeltine Corp filed Critical Hazeltine Corp
Publication of GB529456A publication Critical patent/GB529456A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/46—Reflex amplifiers
    • H03F3/48—Reflex amplifiers with tubes only

Abstract

529,456. Valve circuits for wireless reception. HAZELTINE CORPORATION. May 26, 1939, No. 15760. Convention date, July 13, 1938. [Class 40 (v)] A pentagrid valve 13, having a virtual cathode formed between the second and third grids and having substantially no transconductance between the third grid and the second and fourth (screen) grids, is used as a duplex amplifier, signal frequencies being fed to the first grid and taken off from the screen grids to a mixer valve 17, and the intermediate frequencies being applied to the third grid and taken off from the anode. Automatic-volume-control potentials may be applied to the first grid controlling both stages and to the third grid controlling only the I.F. stage, or either control may be used separately.
GB15760/39A 1938-07-13 1939-05-26 Improvements in duplex vacuum-tube repeaters Expired GB529456A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US218937A US2201365A (en) 1938-07-13 1938-07-13 Duplex vacuum-tube repeater

Publications (1)

Publication Number Publication Date
GB529456A true GB529456A (en) 1940-11-21

Family

ID=22817097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15760/39A Expired GB529456A (en) 1938-07-13 1939-05-26 Improvements in duplex vacuum-tube repeaters

Country Status (2)

Country Link
US (1) US2201365A (en)
GB (1) GB529456A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE458293A (en) * 1943-03-03
BE477233A (en) * 1944-09-01
FR963921A (en) * 1947-03-29 1950-07-26

Also Published As

Publication number Publication date
US2201365A (en) 1940-05-21

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