GB443065A - Improvements in circuits employing multi-grid thermionic tubes - Google Patents

Improvements in circuits employing multi-grid thermionic tubes

Info

Publication number
GB443065A
GB443065A GB16169/35A GB1616935A GB443065A GB 443065 A GB443065 A GB 443065A GB 16169/35 A GB16169/35 A GB 16169/35A GB 1616935 A GB1616935 A GB 1616935A GB 443065 A GB443065 A GB 443065A
Authority
GB
United Kingdom
Prior art keywords
grid
oscillator
june
employing multi
circuits employing
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
GB16169/35A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Philips Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB443065A publication Critical patent/GB443065A/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/08—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance
    • H03B5/10—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element comprising lumped inductance and capacitance active element in amplifier being vacuum tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Selective Calling Equipment (AREA)

Abstract

443,065. Wireless receiving circuits; valve modulating circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. June 4, 1935, No. 16169. Convention date, June 6, 1934. [Class 40 (v)] In a multi-grid oscillator-detector or modulator volume is controlled by variation of the bias of a grid more remote from the cathode than the oscillator electrodes and the voltage applied to the oscillator positive electrode or screen is diminished as the control grid is rendered more negative. The Figure shows a potentiometer 8 for controlling the amplification in a known circuit in this manner to avoid change in the frequency and amplitude of the local oscillations.
GB16169/35A 1934-06-06 1935-06-04 Improvements in circuits employing multi-grid thermionic tubes Expired GB443065A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE443065X 1934-06-06

Publications (1)

Publication Number Publication Date
GB443065A true GB443065A (en) 1936-02-20

Family

ID=6526839

Family Applications (1)

Application Number Title Priority Date Filing Date
GB16169/35A Expired GB443065A (en) 1934-06-06 1935-06-04 Improvements in circuits employing multi-grid thermionic tubes

Country Status (3)

Country Link
US (1) US2079655A (en)
FR (1) FR790860A (en)
GB (1) GB443065A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2653224A (en) * 1949-04-29 1953-09-22 Rca Corp Frequency converter system
BE530972A (en) * 1953-08-05

Also Published As

Publication number Publication date
US2079655A (en) 1937-05-11
FR790860A (en) 1935-11-28

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