CH245848A - Schaltungsanordnung zur rauscharmen Übertragung elektrischer Schwingungen mit wenigstens einer Schirmgitter-Entladungsröhre. - Google Patents

Schaltungsanordnung zur rauscharmen Übertragung elektrischer Schwingungen mit wenigstens einer Schirmgitter-Entladungsröhre.

Info

Publication number
CH245848A
CH245848A CH245848DA CH245848A CH 245848 A CH245848 A CH 245848A CH 245848D A CH245848D A CH 245848DA CH 245848 A CH245848 A CH 245848A
Authority
CH
Switzerland
Prior art keywords
low
circuit arrangement
discharge tube
screen grid
noise transmission
Prior art date
Application number
Other languages
German (de)
English (en)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Publication of CH245848A publication Critical patent/CH245848A/de

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
    • 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
    • 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
    • H03F1/26—Modifications of amplifiers to reduce influence of noise generated by amplifying elements
    • H03F1/28—Modifications of amplifiers to reduce influence of noise generated by amplifying elements in discharge-tube amplifiers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Superheterodyne Receivers (AREA)
CH245848D 1942-04-16 1943-04-14 Schaltungsanordnung zur rauscharmen Übertragung elektrischer Schwingungen mit wenigstens einer Schirmgitter-Entladungsröhre. CH245848A (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL245848X 1942-04-16
NL2486076X 1943-02-23

Publications (1)

Publication Number Publication Date
CH245848A true CH245848A (de) 1946-11-30

Family

ID=32232797

Family Applications (1)

Application Number Title Priority Date Filing Date
CH245848D CH245848A (de) 1942-04-16 1943-04-14 Schaltungsanordnung zur rauscharmen Übertragung elektrischer Schwingungen mit wenigstens einer Schirmgitter-Entladungsröhre.

Country Status (6)

Country Link
US (1) US2486076A (ko)
BE (1) BE450187A (ko)
CH (1) CH245848A (ko)
FR (2) FR894004A (ko)
GB (1) GB613681A (ko)
NL (1) NL60694C (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2659776A (en) * 1949-05-13 1953-11-17 Nowak Karl Selective receiving and amplifying circuit
US2662939A (en) * 1949-04-02 1953-12-15 Nowak Karl High selectivity amplifier

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE484347A (ko) * 1947-08-14
BE484503A (ko) * 1947-08-25
US2662172A (en) * 1950-02-21 1953-12-08 Sperry Prod Inc Oscillator cancellation frequency converter
US2713118A (en) * 1951-05-04 1955-07-12 Robert W Hart Communication system
US2963660A (en) * 1954-04-02 1960-12-06 Northrop Corp Signal frequency converter
DE1081514B (de) * 1957-02-05 1960-05-12 Deutsche Bundespost Breitbandverstaerkerstufe

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB509398A (en) * 1937-12-14 1939-07-14 James Robinson Improvements in retroactive valve apparatus
US2227604A (en) * 1938-01-29 1941-01-07 Rca Corp Ultra high frequency device
US2256067A (en) * 1938-05-27 1941-09-16 Rca Corp Receiver selectivity control

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2662939A (en) * 1949-04-02 1953-12-15 Nowak Karl High selectivity amplifier
US2659776A (en) * 1949-05-13 1953-11-17 Nowak Karl Selective receiving and amplifying circuit

Also Published As

Publication number Publication date
FR894004A (fr) 1944-12-12
US2486076A (en) 1949-10-25
NL60694C (ko)
GB613681A (en) 1948-12-01
BE450187A (ko)
FR53342E (fr) 1945-10-16

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