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GB169889A - Improvements in and relating to vacuum tube devices especially such devices in which an electron current is controlled by a magnetic field - Google Patents

Improvements in and relating to vacuum tube devices especially such devices in which an electron current is controlled by a magnetic field

Info

Publication number
GB169889A
GB169889A GB2468820A GB2468820A GB169889A GB 169889 A GB169889 A GB 169889A GB 2468820 A GB2468820 A GB 2468820A GB 2468820 A GB2468820 A GB 2468820A GB 169889 A GB169889 A GB 169889A
Authority
GB
United Kingdom
Prior art keywords
devices
electron current
controlled
magnetic field
current
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
GB2468820A
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
Original Assignee
General Electric Co
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 filed Critical General Electric Co
Priority to GB2468820A priority Critical patent/GB169889A/en
Publication of GB169889A publication Critical patent/GB169889A/en
Priority claimed from US567029A external-priority patent/US1475164A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L27/00—Modulated-carrier systems
    • H04L27/02—Amplitude-modulated carrier systems, e.g. using on-off keying; Single sideband or vestigial sideband modulation
    • H04L27/04—Modulator circuits; Transmitter circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Amplifiers (AREA)

Abstract

169,889. British Thomson - Houston Co., Ltd., (General Electric Co.). Aug. 25, 1920. Thermionic relays. - In thermionic amplifiers in which the electron stream is controlled by a magnetic field the initial constant field is provided by the electron current. As shown in Fig. 3 windings 6, 7 for the constant field are provided, with a condenser 10 to by-pass the variable current. The coil 14 provided the variable input field for the first tube. The input coil 16 of the second tube carries the total electron current of the first. A tuning condenser 21 may be provided. In a modified form the input of the second tube is coupled by a transformer to the output circuit of the first, and carries only current due to the variable component of the electron current of the latter.
GB2468820A 1920-08-25 1920-08-25 Improvements in and relating to vacuum tube devices especially such devices in which an electron current is controlled by a magnetic field Expired GB169889A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2468820A GB169889A (en) 1920-08-25 1920-08-25 Improvements in and relating to vacuum tube devices especially such devices in which an electron current is controlled by a magnetic field

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2468820A GB169889A (en) 1920-08-25 1920-08-25 Improvements in and relating to vacuum tube devices especially such devices in which an electron current is controlled by a magnetic field
US567029A US1475164A (en) 1922-06-09 1922-06-09 Signal-transmitting system

Publications (1)

Publication Number Publication Date
GB169889A true GB169889A (en) 1921-10-13

Family

ID=26257240

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2468820A Expired GB169889A (en) 1920-08-25 1920-08-25 Improvements in and relating to vacuum tube devices especially such devices in which an electron current is controlled by a magnetic field

Country Status (1)

Country Link
GB (1) GB169889A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847638A (en) * 1954-05-27 1958-08-12 Gen Electric Voltage regulator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2847638A (en) * 1954-05-27 1958-08-12 Gen Electric Voltage regulator

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