GB160941A - Improvements in and relating to radio receiving systems - Google Patents

Improvements in and relating to radio receiving systems

Info

Publication number
GB160941A
GB160941A GB3283019A GB3283019A GB160941A GB 160941 A GB160941 A GB 160941A GB 3283019 A GB3283019 A GB 3283019A GB 3283019 A GB3283019 A GB 3283019A GB 160941 A GB160941 A GB 160941A
Authority
GB
United Kingdom
Prior art keywords
valve
audible
waves
valves
receiver
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
GB3283019A
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Priority to GB3283019A priority Critical patent/GB160941A/en
Publication of GB160941A publication Critical patent/GB160941A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)

Abstract

160,941. British Thomson - Houston Co., Ltd., (General Electric Co.). Dec. 31, 1919. Thermionic detectors; audible reception of unmodulated continuous waves.-A thermionic valve 1, with a tuned grid circuit and a retroactively coupled plate circuit, is started into self-oscillation when waves of the proper frequency are received in the aerial 10, and the change in the steady component of the plate current destroys the balance in a wheatstone bridge, so that currents of audible frequency from a local source 24 become audible in a receiver 21. On the cessation of the incoming waves the valve 1 stops oscillating and the receiver 21 becomes silent again. The upper arms of the wheatstone bridge comprise the plate circuits of valves 12, 13, and the valve 1 has a connection through a shunted condenser to the grid of the valve 12 so as to control its effective resistance. The valves 12, 13 may be balanced by adjusting the resistances 28, 29 in the filament-heating circuits.
GB3283019A 1919-12-31 1919-12-31 Improvements in and relating to radio receiving systems Expired GB160941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3283019A GB160941A (en) 1919-12-31 1919-12-31 Improvements in and relating to radio receiving systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3283019A GB160941A (en) 1919-12-31 1919-12-31 Improvements in and relating to radio receiving systems

Publications (1)

Publication Number Publication Date
GB160941A true GB160941A (en) 1921-03-31

Family

ID=10344621

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3283019A Expired GB160941A (en) 1919-12-31 1919-12-31 Improvements in and relating to radio receiving systems

Country Status (1)

Country Link
GB (1) GB160941A (en)

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