GB434818A - Improvements in or relating to thermionic valve circuit arrangements and thermionic valves for use therein - Google Patents

Improvements in or relating to thermionic valve circuit arrangements and thermionic valves for use therein

Info

Publication number
GB434818A
GB434818A GB7436/34A GB743634A GB434818A GB 434818 A GB434818 A GB 434818A GB 7436/34 A GB7436/34 A GB 7436/34A GB 743634 A GB743634 A GB 743634A GB 434818 A GB434818 A GB 434818A
Authority
GB
United Kingdom
Prior art keywords
grid
thermionic
valve
relating
march
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
GB7436/34A
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 GB434818A publication Critical patent/GB434818A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03D—DEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER
    • H03D7/00—Transference of modulation from one carrier to another, e.g. frequency-changing
    • H03D7/06—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes
    • H03D7/10—Transference of modulation from one carrier to another, e.g. frequency-changing by means of discharge tubes having more than two electrodes the signals to be mixed being applied between different pairs of electrodes

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

434,818. Valve circuits. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, Berlin. March 8, 1934, No. 7436. Convention date, March 8, 1933. [Classes 39 (i) and 40 (v)] A combined detector-oscillator for heterodyne reception comprises a multi-grid valve V in which the two grids G1, G2, nearer the cathode K are coupled over the circuit L<1>, L1, C1, to generate local oscillations, the third grid G3 acts as a screen and the fourth grid G4 has signal input voltage applied to it. A fifth grid, acting as a screen, may be interposed between the anode A and the grid G4, and be connected within the valve to grid G3. The bias Eg4 applied to the grid G4 may vary in accordance with received signal strength. The grid G4 may have a non-uniform mesh or pitch.
GB7436/34A 1933-03-08 1934-03-08 Improvements in or relating to thermionic valve circuit arrangements and thermionic valves for use therein Expired GB434818A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE434818X 1933-03-08

Publications (1)

Publication Number Publication Date
GB434818A true GB434818A (en) 1935-09-09

Family

ID=6506680

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7436/34A Expired GB434818A (en) 1933-03-08 1934-03-08 Improvements in or relating to thermionic valve circuit arrangements and thermionic valves for use therein

Country Status (3)

Country Link
BE (1) BE397797A (en)
FR (1) FR769504A (en)
GB (1) GB434818A (en)

Also Published As

Publication number Publication date
FR769504A (en) 1934-08-28
BE397797A (en)

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