GB563222A - Improvements in or relating to thermionic valve circuits - Google Patents

Improvements in or relating to thermionic valve circuits

Info

Publication number
GB563222A
GB563222A GB153843A GB153843A GB563222A GB 563222 A GB563222 A GB 563222A GB 153843 A GB153843 A GB 153843A GB 153843 A GB153843 A GB 153843A GB 563222 A GB563222 A GB 563222A
Authority
GB
United Kingdom
Prior art keywords
grid
valves
discharge tubes
voltages
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
GB153843A
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.)
STC PLC
Original Assignee
Standard Telephone and Cables PLC
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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB153843A priority Critical patent/GB563222A/en
Publication of GB563222A publication Critical patent/GB563222A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/607—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using discharge tubes in parallel with the load as final control devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F1/00—Details of amplifiers with only discharge tubes, only semiconductor devices or only unspecified devices as amplifying elements
    • H03F1/52—Circuit arrangements for protecting such amplifiers
    • H03F1/54—Circuit arrangements for protecting such amplifiers with tubes only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
  • Circuit Arrangements For Discharge Lamps (AREA)
  • Electron Sources, Ion Sources (AREA)

Abstract

563,222. Thermionic valve circuits. STANDARD TELEPHONES & CABLES, Ltd., and LEVY, M. M. Jan. 29, 1943, No. 1538. [Class 40 (v)] The operation of a thermionic valve circuit supplied from a source of variable voltage is stabilized by the provision of a stabilizing valve to which the voltage variations are applied and from the anode-cathode circuit of which voltages are derived and applied to a grid so as to maintain the performance constant. The Figure shows an arrangement in which the variation in the high tension supply is applied to the grid of an auxiliary valve V0 after reduction through an appropriate number of neon discharge tubes N1 ... N3 which supplies the screen grid voltages to the operative valves V1, V2. In a modification, Fig. 4 (not shown), the auxiliary valve supplies the control grid voltages to the operative valves, the voltage being reduced by one or more neon discharge tubes. The use of neon discharge tubes may be dispensed with, but a less effective control is obtained and when the control grid bias is controlled the cathode biassing resistances associated with the valves may be variable to obtain an appropriate grid bias for the operative valves.
GB153843A 1943-01-29 1943-01-29 Improvements in or relating to thermionic valve circuits Expired GB563222A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB153843A GB563222A (en) 1943-01-29 1943-01-29 Improvements in or relating to thermionic valve circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB153843A GB563222A (en) 1943-01-29 1943-01-29 Improvements in or relating to thermionic valve circuits

Publications (1)

Publication Number Publication Date
GB563222A true GB563222A (en) 1944-08-03

Family

ID=9723715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB153843A Expired GB563222A (en) 1943-01-29 1943-01-29 Improvements in or relating to thermionic valve circuits

Country Status (1)

Country Link
GB (1) GB563222A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE898766C (en) * 1948-10-02 1953-12-03 Siemens Ag Amplifier circuit with stabilized grid bias

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE898766C (en) * 1948-10-02 1953-12-03 Siemens Ag Amplifier circuit with stabilized grid bias

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