GB616512A - Improvements in or relating to modulator circuit arrangements - Google Patents

Improvements in or relating to modulator circuit arrangements

Info

Publication number
GB616512A
GB616512A GB27490/46A GB2749046A GB616512A GB 616512 A GB616512 A GB 616512A GB 27490/46 A GB27490/46 A GB 27490/46A GB 2749046 A GB2749046 A GB 2749046A GB 616512 A GB616512 A GB 616512A
Authority
GB
United Kingdom
Prior art keywords
anode
modulating
windings
relating
voltages
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
GB27490/46A
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.)
RCA Corp
Original Assignee
RCA Corp
Radio Corporation of America
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 RCA Corp, Radio Corporation of America filed Critical RCA Corp
Publication of GB616512A publication Critical patent/GB616512A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
    • H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
    • H03C1/24—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to different grid
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03C—MODULATION
    • H03C1/00—Amplitude modulation
    • H03C1/16—Amplitude modulation by means of discharge device having at least three electrodes
    • H03C1/18—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid
    • H03C1/20—Amplitude modulation by means of discharge device having at least three electrodes carrier applied to control grid modulating signal applied to anode
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/02—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation
    • H03F1/04—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers
    • H03F1/06—Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation in discharge-tube amplifiers to raise the efficiency of amplifying modulated radio frequency waves; to raise the efficiency of amplifiers acting also as modulators

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microwave Amplifiers (AREA)
  • Amplifiers (AREA)
  • Amplitude Modulation (AREA)

Abstract

616,512. Valve modulating circuits. RADIO CORPORATION OF AMERICA. Sept. 12, 1946, No. 27490. Convention date, May 10, 1945. [Class 40 (v)] To reduce distortion at full modulation, both the anode of the power amplifier A and the anode and screen grid of the carrier frequency exciter stage E are modulated by in phase modulating potentials derived from windings T2, T3 of transformer J coupled to the modulator stage 30. Windings T2, T3 are so proportioned that at 100 per cent modulation the peak values of the modulating voltages are equal to the D.C. anode voltages and D.C. screen voltage respectively.
GB27490/46A 1945-05-10 1946-09-12 Improvements in or relating to modulator circuit arrangements Expired GB616512A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US592957A US2463275A (en) 1945-05-10 1945-05-10 Modulation

Publications (1)

Publication Number Publication Date
GB616512A true GB616512A (en) 1949-01-21

Family

ID=24372749

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27490/46A Expired GB616512A (en) 1945-05-10 1946-09-12 Improvements in or relating to modulator circuit arrangements

Country Status (2)

Country Link
US (1) US2463275A (en)
GB (1) GB616512A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2743421A (en) * 1951-11-02 1956-04-24 Lab For Electronics Inc Modulation circuit
US2830272A (en) * 1954-04-19 1958-04-08 Textron Inc Modulation system
US2907956A (en) * 1957-11-15 1959-10-06 Hollingsworth R Lee Gating modulation
US3337818A (en) * 1964-05-18 1967-08-22 Rucker Co Modulation system with multiple modulation outputs

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2159020A (en) * 1934-06-09 1939-05-23 Bell Telephone Labor Inc Modulating system
NL44799C (en) * 1935-03-15

Also Published As

Publication number Publication date
US2463275A (en) 1949-03-01

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