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GB410374A - Improvements in or relating to thermionic valve apparatus - Google Patents

Improvements in or relating to thermionic valve apparatus

Info

Publication number
GB410374A
GB410374A GB24491/33A GB2449133A GB410374A GB 410374 A GB410374 A GB 410374A GB 24491/33 A GB24491/33 A GB 24491/33A GB 2449133 A GB2449133 A GB 2449133A GB 410374 A GB410374 A GB 410374A
Authority
GB
United Kingdom
Prior art keywords
grid
anode
biassed
valve
positively
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
GB24491/33A
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Publication of GB410374A publication Critical patent/GB410374A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/22—Automatic control in amplifiers having discharge tubes

Landscapes

  • Magnetic Resonance Imaging Apparatus (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

Abstract

410,374. Valve circuits for wireless reception. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. Sept. 4, 1933, No. 24491. Convention date, Sept. 3, 1932. [Classes 39 (i) and 40 (v).] The potential developed across a resistance 15 by the anode current of a leaky-grid detector valve 13 is applied to the control grid 3 of a high-frequency amplifying valve 1 to vary the magnitude and /or sign of the internal impedance thereof and hence the damping of its anode circuit 10, 11 which is coupled to the grid circuit 12 of the detector 13. The valve 1 comprises also a positively-biassed screening grid 4, a positively-biassed perforated anode 5, a negatively-biassed "piling-up" grid 6 and an outer anode 7, in the order named, the latter electrode being positively biassed to a less value than that of the anode 5. The control potentials may alternatively, or in addition, be applied to the piling-up grid 6.
GB24491/33A 1932-09-03 1933-09-04 Improvements in or relating to thermionic valve apparatus Expired GB410374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE410374X 1932-09-03

Publications (1)

Publication Number Publication Date
GB410374A true GB410374A (en) 1934-05-17

Family

ID=6424578

Family Applications (1)

Application Number Title Priority Date Filing Date
GB24491/33A Expired GB410374A (en) 1932-09-03 1933-09-04 Improvements in or relating to thermionic valve apparatus

Country Status (1)

Country Link
GB (1) GB410374A (en)

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