GB412477A - Improvements in or relating to electron discharge device amplifiers - Google Patents

Improvements in or relating to electron discharge device amplifiers

Info

Publication number
GB412477A
GB412477A GB30846/33A GB3084633A GB412477A GB 412477 A GB412477 A GB 412477A GB 30846/33 A GB30846/33 A GB 30846/33A GB 3084633 A GB3084633 A GB 3084633A GB 412477 A GB412477 A GB 412477A
Authority
GB
United Kingdom
Prior art keywords
valve
valves
relating
discharge device
nov
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
GB30846/33A
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 GB412477A publication Critical patent/GB412477A/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

  • Amplifiers (AREA)
  • Microwave Amplifiers (AREA)

Abstract

412,477. Valve circuits for wireless reception. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches . Ufer, Berlin. Nov. 6, 1933, No. 30846. Convention date, Nov. 5, 1932. [Class 40 (v).] In a thermionic valve amplifier comprising two valves I, II, in series, in which the incoming signal e is applied to the grid of valve I, the amplification is controlled by varying the voltage e3 applied between the cathode and second grid of valve II, causing more or less of the current through the valves to flow over the shunt path i2 instead of over the path i4 which includes the output impedance J. The invention is also applicable to circuits utilizing magnetron valves.
GB30846/33A 1932-11-05 1933-11-06 Improvements in or relating to electron discharge device amplifiers Expired GB412477A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE412477X 1932-11-05

Publications (1)

Publication Number Publication Date
GB412477A true GB412477A (en) 1934-06-28

Family

ID=6437048

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30846/33A Expired GB412477A (en) 1932-11-05 1933-11-06 Improvements in or relating to electron discharge device amplifiers

Country Status (1)

Country Link
GB (1) GB412477A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974182C (en) * 1954-01-28 1960-10-06 Philips Nv Transistor amplifier with regulation of the gain
US3177439A (en) * 1961-12-06 1965-04-06 Philips Corp Transistor amplifier devices with controllable amplification

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE974182C (en) * 1954-01-28 1960-10-06 Philips Nv Transistor amplifier with regulation of the gain
US3177439A (en) * 1961-12-06 1965-04-06 Philips Corp Transistor amplifier devices with controllable amplification

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