GB184560A - Improvements in and relating to electron discharge devices - Google Patents

Improvements in and relating to electron discharge devices

Info

Publication number
GB184560A
GB184560A GB1342621A GB1342621A GB184560A GB 184560 A GB184560 A GB 184560A GB 1342621 A GB1342621 A GB 1342621A GB 1342621 A GB1342621 A GB 1342621A GB 184560 A GB184560 A GB 184560A
Authority
GB
United Kingdom
Prior art keywords
plate
circuit
valve
resistance
current
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
GB1342621A
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 GB1342621A priority Critical patent/GB184560A/en
Publication of GB184560A publication Critical patent/GB184560A/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
    • H04B1/163—Special arrangements for the reduction of the damping of resonant circuits of receivers

Abstract

184,560. British Thomson - Houston Co., Ltd., (General Electric Co.). May 11, 1921. Thermionic relays.-A thermionic valve of the negative-resistance type, in which the plate current varies inversely as the plate potential, is utilized as an amplifier by applying the input variations to the plate circuit and employing the grid circuit as the output circuit. The input variations may be applied by a transformer 8 across a resistance 7 connected between the plate 4 and filament 2 of the valve. The resulting variation of current passing between the control electrode or grid 3 and the filament 2 may affect u telephone or other apparatus 10 or a second amplifying-valve. The current variations in the grid circuit are in the opposite sense to those in the plate circuit. The resistance 7 has approximately the same value as the negative resistance of the plate circuit. The valve is preferably such that the plate current is independent of the voltage of the electrode 3 over the working range, thus permitting the use of considerable impedance in the circuit 2, 3.
GB1342621A 1921-05-11 1921-05-11 Improvements in and relating to electron discharge devices Expired GB184560A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1342621A GB184560A (en) 1921-05-11 1921-05-11 Improvements in and relating to electron discharge devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1342621A GB184560A (en) 1921-05-11 1921-05-11 Improvements in and relating to electron discharge devices

Publications (1)

Publication Number Publication Date
GB184560A true GB184560A (en) 1922-08-11

Family

ID=10022739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1342621A Expired GB184560A (en) 1921-05-11 1921-05-11 Improvements in and relating to electron discharge devices

Country Status (1)

Country Link
GB (1) GB184560A (en)

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