GB172127A - Improvements in and relating to valve transmitters and receivers for wireless telegraphy and telephony - Google Patents

Improvements in and relating to valve transmitters and receivers for wireless telegraphy and telephony

Info

Publication number
GB172127A
GB172127A GB2539020A GB2539020A GB172127A GB 172127 A GB172127 A GB 172127A GB 2539020 A GB2539020 A GB 2539020A GB 2539020 A GB2539020 A GB 2539020A GB 172127 A GB172127 A GB 172127A
Authority
GB
United Kingdom
Prior art keywords
telephony
circuit
inductance
receivers
relating
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
GB2539020A
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.)
ARTHUR KENNETH MACRORIE
HAROLD MORRIS AIREY
Original Assignee
ARTHUR KENNETH MACRORIE
HAROLD MORRIS AIREY
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 ARTHUR KENNETH MACRORIE, HAROLD MORRIS AIREY filed Critical ARTHUR KENNETH MACRORIE
Priority to GB2539020A priority Critical patent/GB172127A/en
Publication of GB172127A publication Critical patent/GB172127A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Noise Elimination (AREA)

Abstract

172,127. Macrorie, A. K.., Airey, H. Morris-, and Shearing, G. Sept. 2, 1920. Thermionic oscillation generators.-In order to reduce or damp out objectional harmonics in a valve receiving or transmitting set for wireless telegraphy or telephony, an adjustable inductance L is placed in series with an adjustable condenser C in the anode circuit, and the value of these elements is so adjusted that the circuit comprising them and the remainder of the aerial circuit between the tapping-point X and the point Y is in tune with the aerial circuit as a whole. Preferably the value of the inductance L is considerably greater than the inductance between the points X and Y, and the condenser C is comparatively small.
GB2539020A 1920-09-02 1920-09-02 Improvements in and relating to valve transmitters and receivers for wireless telegraphy and telephony Expired GB172127A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2539020A GB172127A (en) 1920-09-02 1920-09-02 Improvements in and relating to valve transmitters and receivers for wireless telegraphy and telephony

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2539020A GB172127A (en) 1920-09-02 1920-09-02 Improvements in and relating to valve transmitters and receivers for wireless telegraphy and telephony

Publications (1)

Publication Number Publication Date
GB172127A true GB172127A (en) 1921-12-02

Family

ID=10226894

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2539020A Expired GB172127A (en) 1920-09-02 1920-09-02 Improvements in and relating to valve transmitters and receivers for wireless telegraphy and telephony

Country Status (1)

Country Link
GB (1) GB172127A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9709435B2 (en) 2011-02-18 2017-07-18 Gems Sensors Inc. Pivoted float liquid level sensor having a magnetically actuated switch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9709435B2 (en) 2011-02-18 2017-07-18 Gems Sensors Inc. Pivoted float liquid level sensor having a magnetically actuated switch

Similar Documents

Publication Publication Date Title
GB450247A (en) Improvements in radio receivers
GB172127A (en) Improvements in and relating to valve transmitters and receivers for wireless telegraphy and telephony
GB617647A (en) Improvements in or relating to frequency-changing circuits
GB413973A (en) Improvements in or relating to short wave thermionic valve transmitter arrangements
GB310043A (en) Improvements in or relating to high frequency thermionic generators
GB415804A (en) Improvements in or relating to thermionic oscillation generators
GB354075A (en) Improvements in or relating to high frequency oscillation generators
GB425880A (en) Improvements in superheterodyne receivers for wireless reception
GB162097A (en) Improvements in or relating to wireless telegraphy and telephony
GB238003A (en) Improvements in and relating to thermionic valve circuits
GB314534A (en) Improvements in or relating to radio and the like valve transmitters
GB719980A (en) Improvements in or relating to push-pull circuits for amplifying or generating radio-frequency oscillations
GB462329A (en) Improvements in or relating to thermionic oscillation generators
GB381902A (en) Improvements in or relating to radio and other high frequency receivers
GB307177A (en) Improvements in or relating to wireless receiving systems
GB163117A (en) Improvements in and relating to wireless telegraphy and telephony
GB289999A (en) Improvements in or relating to wireless transmitting apparatus
GB248876A (en) Improvements in or relating to wireless receiving circuits
GB450810A (en) Radio repeating systems
GB374621A (en) Improvements in or relating to radio receivers
GB222595A (en) Improvements in or relating to regenerative circuits as used in wireless apparatus and the like
GB197405A (en) Improvements in or relating to receiving arrangements for electromagnetic waves
GB230853A (en) Improvements in and relating to independently excited thermionic valve radio transmitters
GB418033A (en) Improvements in or relating to wireless receiving apparatus
GB152693A (en) Negative and positive resistance vacuum tube devices especially for use in wireless telegraphy