GB534946A - Improvement in the construction and operation of electron discharge devices - Google Patents

Improvement in the construction and operation of electron discharge devices

Info

Publication number
GB534946A
GB534946A GB27848/39A GB2784839A GB534946A GB 534946 A GB534946 A GB 534946A GB 27848/39 A GB27848/39 A GB 27848/39A GB 2784839 A GB2784839 A GB 2784839A GB 534946 A GB534946 A GB 534946A
Authority
GB
United Kingdom
Prior art keywords
field
construction
improvement
discharge devices
electron discharge
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
GB27848/39A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Publication of GB534946A publication Critical patent/GB534946A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/32—Amplitude modulation by deflection of electron beam in discharge tube
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J21/00—Vacuum tubes
    • H01J21/02—Tubes with a single discharge path
    • H01J21/18—Tubes with a single discharge path having magnetic control means; having both magnetic and electrostatic control means

Landscapes

  • Magnetically Actuated Valves (AREA)
  • Amplifiers (AREA)

Abstract

534,946. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd. Oct. 13, 1939, No. 27848. Convention date, Nov. 16 1938. Drawings to Specification. [Class 39 (i)] An amplifying valve, especially of the type with the grids &c. formed as coaxial cylinders, is subjected to a magnetic field at right angles to the electron flow for the purpose of regulating or suppressing harmonics of the impressed frequency ; the effect of the field in producing this result is discussed and distinguished from that of similar fields used for other purposes. The field may be applied by means of a winding on an insulating bobbin surrounding a pentode valve of known construction.
GB27848/39A 1938-11-16 1939-10-13 Improvement in the construction and operation of electron discharge devices Expired GB534946A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US240691A US2236661A (en) 1938-11-16 1938-11-16 Control of space discharge apparatus

Publications (1)

Publication Number Publication Date
GB534946A true GB534946A (en) 1941-03-24

Family

ID=22907543

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27848/39A Expired GB534946A (en) 1938-11-16 1939-10-13 Improvement in the construction and operation of electron discharge devices

Country Status (3)

Country Link
US (1) US2236661A (en)
FR (1) FR861690A (en)
GB (1) GB534946A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002409B (en) * 1953-11-27 1957-02-14 Telefunken Gmbh Arrangement for frequency modulation of a high-frequency carrier

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1002409B (en) * 1953-11-27 1957-02-14 Telefunken Gmbh Arrangement for frequency modulation of a high-frequency carrier

Also Published As

Publication number Publication date
US2236661A (en) 1941-04-01
FR861690A (en) 1941-02-14

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