GB515762A - Improvements in or relating to high frequency amplifier arrangements - Google Patents

Improvements in or relating to high frequency amplifier arrangements

Info

Publication number
GB515762A
GB515762A GB1741738A GB1741738A GB515762A GB 515762 A GB515762 A GB 515762A GB 1741738 A GB1741738 A GB 1741738A GB 1741738 A GB1741738 A GB 1741738A GB 515762 A GB515762 A GB 515762A
Authority
GB
United Kingdom
Prior art keywords
valve
grid
input
output
circuit
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
GB1741738A
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.)
Marconis Wireless Telegraph Co Ltd
BAE Systems Electronics Ltd
Original Assignee
Marconis Wireless Telegraph Co Ltd
Marconi 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 Marconis Wireless Telegraph Co Ltd, Marconi Co Ltd filed Critical Marconis Wireless Telegraph Co Ltd
Priority to GB1741738A priority Critical patent/GB515762A/en
Publication of GB515762A publication Critical patent/GB515762A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/50—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower
    • H03F3/52—Amplifiers in which input is applied to, or output is derived from, an impedance common to input and output circuits of the amplifying element, e.g. cathode follower with tubes only

Landscapes

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

Abstract

515,762. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and GREEN, E. June 11, 1938, No. 17417. [Class 40 (v)] Distortion in a driven high frequency amplifier due to the effect of the non-linear load imposed by its grid on the driving amplifier is overcome by arranging the input and output circuits in series with the valve. The grid of VI is earthed through condenser C4 which may be adjustable to neutralize the inductance of the grid lead. Input is applied from L1 to the tuned circuit L2 C2 connected between the valve cathode and earth while the output is taken from the circuit L3 C3 in the anode lead. Due to this arrangement the input contributes power to the output and there is in effect a rectilinear load on the input circuit which " swamps " non-rectilinearity due to grid current. The cathode of the valve may be heated from an earthed supply by employing two conductors in parallel for inductance L2 and using them to carry the heating current. The two conductors may be arranged coaxially with insulation between. An embodiment of the invention using valves in push-pull is described with reference to Fig. 2 (not shown). Reference has been directed by the Comptroller to Specifications 489,289 and 491,803.
GB1741738A 1938-06-11 1938-06-11 Improvements in or relating to high frequency amplifier arrangements Expired GB515762A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1741738A GB515762A (en) 1938-06-11 1938-06-11 Improvements in or relating to high frequency amplifier arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1741738A GB515762A (en) 1938-06-11 1938-06-11 Improvements in or relating to high frequency amplifier arrangements

Publications (1)

Publication Number Publication Date
GB515762A true GB515762A (en) 1939-12-13

Family

ID=10094832

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1741738A Expired GB515762A (en) 1938-06-11 1938-06-11 Improvements in or relating to high frequency amplifier arrangements

Country Status (1)

Country Link
GB (1) GB515762A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2716161A (en) * 1951-11-26 1955-08-23 Rca Corp Band selecting amplifiers
US2742616A (en) * 1949-08-30 1956-04-17 Bell Telephone Labor Inc Negative impedance repeaters

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2742616A (en) * 1949-08-30 1956-04-17 Bell Telephone Labor Inc Negative impedance repeaters
US2716161A (en) * 1951-11-26 1955-08-23 Rca Corp Band selecting amplifiers

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