GB321771A - Improvements in or relating to high frequency amplifiers - Google Patents

Improvements in or relating to high frequency amplifiers

Info

Publication number
GB321771A
GB321771A GB2778628A GB2778628A GB321771A GB 321771 A GB321771 A GB 321771A GB 2778628 A GB2778628 A GB 2778628A GB 2778628 A GB2778628 A GB 2778628A GB 321771 A GB321771 A GB 321771A
Authority
GB
United Kingdom
Prior art keywords
circuit
valve
anode
coupling
series
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
GB2778628A
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.)
CHRISTOPHER EDMUND GERVASE BAI
Parlophone Records Ltd
Original Assignee
CHRISTOPHER EDMUND GERVASE BAI
Gramophone 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 CHRISTOPHER EDMUND GERVASE BAI, Gramophone Co Ltd filed Critical CHRISTOPHER EDMUND GERVASE BAI
Priority to GB2778628A priority Critical patent/GB321771A/en
Publication of GB321771A publication Critical patent/GB321771A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/0138—Electrical filters or coupling circuits
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/189—High-frequency amplifiers, e.g. radio frequency amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/537—A transformer being used as coupling element between two amplifying stages
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
    • H03H7/01—Frequency selective two-port networks
    • H03H7/17—Structural details of sub-circuits of frequency selective networks
    • H03H7/1741—Comprising typical LC combinations, irrespective of presence and location of additional resistors
    • H03H7/1766—Parallel LC in series path

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Amplifiers (AREA)

Abstract

321,771. Bailey, C. E. G., and Gramophone Co., Ltd. Sept. 27, 1928. Thermionic amplifiers. - In a highfrequency amplifier the coupling is effected by a tuned circuit 2 in parallel with respect to the anode circuit of the valve and by an auxiliary circuit 3, 5, 6 in series between the anode of the valve and the grid of the succeeding valve. The auxiliary circuit is less heavily damped than the tuned circuit 2 and is provided to reduce the amplification of the carrier and lower audio frequencies to compensate for the loss in the circuit 2 of the higher audio-frequencies. The Figure shows the series circuit autotransformer coupledrand'provided with resistance 7 to give the desired damping since the circuit 2 is damped by the valve V1. The tuning condensers of the two circuits may be mechanically coupled. The coupling is preferably employed in the intermediate circuit amplifier of a supersonic heterodyne receiver.
GB2778628A 1928-09-27 1928-09-27 Improvements in or relating to high frequency amplifiers Expired GB321771A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2778628A GB321771A (en) 1928-09-27 1928-09-27 Improvements in or relating to high frequency amplifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2778628A GB321771A (en) 1928-09-27 1928-09-27 Improvements in or relating to high frequency amplifiers

Publications (1)

Publication Number Publication Date
GB321771A true GB321771A (en) 1929-11-21

Family

ID=10265283

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2778628A Expired GB321771A (en) 1928-09-27 1928-09-27 Improvements in or relating to high frequency amplifiers

Country Status (1)

Country Link
GB (1) GB321771A (en)

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