GB412152A - Improvements in and relating to tuning arrangements for high frequency circuits - Google Patents

Improvements in and relating to tuning arrangements for high frequency circuits

Info

Publication number
GB412152A
GB412152A GB6199/34A GB619934A GB412152A GB 412152 A GB412152 A GB 412152A GB 6199/34 A GB6199/34 A GB 6199/34A GB 619934 A GB619934 A GB 619934A GB 412152 A GB412152 A GB 412152A
Authority
GB
United Kingdom
Prior art keywords
circuit
inductance
condenser
relating
valve
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
GB6199/34A
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.)
British Thomson Houston Co Ltd
Original Assignee
British Thomson Houston Co Ltd
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 British Thomson Houston Co Ltd filed Critical British Thomson Houston Co Ltd
Publication of GB412152A publication Critical patent/GB412152A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H5/00—One-port networks comprising only passive electrical elements as network components
    • H03H5/02—One-port networks comprising only passive electrical elements as network components without voltage- or current-dependent elements

Landscapes

  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)

Abstract

412,152. Wireless receiving - - apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.- (Assignees of Becker, S. ; 196, Division Street, Schenectady, New York, U.S.A.) Feb. 26, 1934, No. 6199. Convention date, March 1, 1933. [Class 40 (v).] A wireless receiver comprises a circuit 5, 6 adapted to be tuned over different frequency ranges by connecting a condenser 7 across sections of the inductance 5, as by a switch 23. Preferably the L /C ratio is high for the circuit 5, 6 but low for the circuit constituted by the condenser 7 and the section of the inductance 5. The valve 2 acts as an aperiodic amplifier. The anode circuit of valve 9 includes a reaction coil 12, coupled to inductance 5. The high potential side of the reaction coil 12 can be earthed through any one of condensers 17 ... 20, as by a switch 22, so as to vary the reaction. Preferably the switches 22, 23 are gauged.
GB6199/34A 1933-03-01 1934-02-26 Improvements in and relating to tuning arrangements for high frequency circuits Expired GB412152A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US412152XA 1933-03-01 1933-03-01

Publications (1)

Publication Number Publication Date
GB412152A true GB412152A (en) 1934-06-21

Family

ID=21915357

Family Applications (1)

Application Number Title Priority Date Filing Date
GB6199/34A Expired GB412152A (en) 1933-03-01 1934-02-26 Improvements in and relating to tuning arrangements for high frequency circuits

Country Status (1)

Country Link
GB (1) GB412152A (en)

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