GB443191A - Improvements in or relating to thermionic amplifiers - Google Patents

Improvements in or relating to thermionic amplifiers

Info

Publication number
GB443191A
GB443191A GB28246/35A GB2824635A GB443191A GB 443191 A GB443191 A GB 443191A GB 28246/35 A GB28246/35 A GB 28246/35A GB 2824635 A GB2824635 A GB 2824635A GB 443191 A GB443191 A GB 443191A
Authority
GB
United Kingdom
Prior art keywords
valve
resistance
reaction
relating
output
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
GB28246/35A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of GB443191A publication Critical patent/GB443191A/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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/46—Reflex amplifiers
    • H03F3/48—Reflex amplifiers with tubes only

Abstract

443,191. Valve circuits for wireless reception. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Oct. 12, 1935, No. 28246. Convention date, Dec. 11, 1934. [Class 40 (v)] In a receiver in which a valve serves to amplify at both high and low frequency and is provided with a reactive coupling, a direct voltage depending on the detector output is applied to the valve so as to decrease the mutual conductance as the reaction is increased. The Figure shows a high frequency pentode 1 with a reaction coil L3 in the screen grid circuit in which both the audio frequency and direct current voltages across the diode load R3 are applied to the grid through resistance R5. The output to the valve 3 is taken from the junction of the choke L4 and the resistance R2.
GB28246/35A 1934-12-11 1935-10-12 Improvements in or relating to thermionic amplifiers Expired GB443191A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL443191X 1934-12-11

Publications (1)

Publication Number Publication Date
GB443191A true GB443191A (en) 1936-02-24

Family

ID=19786254

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28246/35A Expired GB443191A (en) 1934-12-11 1935-10-12 Improvements in or relating to thermionic amplifiers

Country Status (2)

Country Link
US (1) US2077597A (en)
GB (1) GB443191A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582100A (en) * 1943-03-03 1952-01-08 Hartford Nat Bank & Trust Co Reflex amplifier circuit for radio receivers

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2597029A (en) * 1946-09-21 1952-05-20 Int Standard Electric Corp Superheterodyne radio receiver employing a multifunction tube

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2582100A (en) * 1943-03-03 1952-01-08 Hartford Nat Bank & Trust Co Reflex amplifier circuit for radio receivers

Also Published As

Publication number Publication date
US2077597A (en) 1937-04-20

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