GB465613A - Improvements in or relating to thermionic valve circuit arrangements - Google Patents

Improvements in or relating to thermionic valve circuit arrangements

Info

Publication number
GB465613A
GB465613A GB3107535A GB3107535A GB465613A GB 465613 A GB465613 A GB 465613A GB 3107535 A GB3107535 A GB 3107535A GB 3107535 A GB3107535 A GB 3107535A GB 465613 A GB465613 A GB 465613A
Authority
GB
United Kingdom
Prior art keywords
cathode
frequency
resistance
valve
thermionic valve
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
GB3107535A
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 GB3107535A priority Critical patent/GB465613A/en
Publication of GB465613A publication Critical patent/GB465613A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04BTRANSMISSION
    • H04B1/00Details 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
    • H04B1/06Receivers
    • H04B1/16Circuits
    • H04B1/1607Supply circuits
    • H04B1/1623Supply circuits using tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electrotherapy Devices (AREA)

Abstract

465,613. Thermionic valve circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., and' CLOUGH, N. H. Nov. 9, 1935, No. 31075. [Class 40 (v)] A thermionic valve arrangement handling high signal frequencies with the cathode at high potential to earth at signal frequency, as in certain television modulating arrangements, has the cathode heated by energy of a frequency higher than the signal frequency and preferably more than twice this frequency. Fig. 2 shows a modulating valve 4 having a resistance 5 in the cathode lead. Voltages across the resistance 5 are applied to effect modulation on the grids 6, 7 of the carrier amplifier through a copper oxide or similar rectifier 15 or through a floating battery or resistance network. The cathode 3 of the valve 4 is heated from an oscillator 16 through a tuned circuit 17 loosely coupled to the circuit 18 to give low capacity to earth. In a modification, Fig. 3, the cathode heating is effected by coupling to the carrier frequency input stage 11, 12.
GB3107535A 1935-11-09 1935-11-09 Improvements in or relating to thermionic valve circuit arrangements Expired GB465613A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3107535A GB465613A (en) 1935-11-09 1935-11-09 Improvements in or relating to thermionic valve circuit arrangements

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3107535A GB465613A (en) 1935-11-09 1935-11-09 Improvements in or relating to thermionic valve circuit arrangements

Publications (1)

Publication Number Publication Date
GB465613A true GB465613A (en) 1937-05-10

Family

ID=10317583

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3107535A Expired GB465613A (en) 1935-11-09 1935-11-09 Improvements in or relating to thermionic valve circuit arrangements

Country Status (1)

Country Link
GB (1) GB465613A (en)

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