GB423390A - Improvements in or relating to circuits comprising gasfilled triodes - Google Patents

Improvements in or relating to circuits comprising gasfilled triodes

Info

Publication number
GB423390A
GB423390A GB3348233A GB3348233A GB423390A GB 423390 A GB423390 A GB 423390A GB 3348233 A GB3348233 A GB 3348233A GB 3348233 A GB3348233 A GB 3348233A GB 423390 A GB423390 A GB 423390A
Authority
GB
United Kingdom
Prior art keywords
external anode
valve
circuit
operate
general electric
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
GB3348233A
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB3348233A priority Critical patent/GB423390A/en
Priority to FR781279D priority patent/FR781279A/en
Priority to FR781650D priority patent/FR781650A/en
Publication of GB423390A publication Critical patent/GB423390A/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01JELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00Gas-filled discharge tubes with solid cathode
    • H01J17/50Thermionic-cathode tubes
    • H01J17/52Thermionic-cathode tubes with one cathode and one anode
    • H01J17/54Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes
    • H01J17/56Thermionic-cathode tubes with one cathode and one anode having one or more control electrodes for preventing and then permitting ignition, but thereafter having no control

Landscapes

  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Discharge Lamp (AREA)

Abstract

423,390. Valve circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, DUNHAM, C. R., and LEWER, S. K., c/o General Electric Co., Wembley, Middlesex. Nov. 29, 1933, No. 33482. Drawings to Specification. [Classes 39 (i) and 40 (v)] A circuit arrangement adapted to operate with a frequency exceeding 1,000 cycles per second, more particularly as a relaxation oscillation generator, comprises a gas-filled triode valve with an external anode. The generated oscillation may provide the time-base of a cathode-ray oscillograph and the external anode enables the circuit to operate at a higher frequency than a circuit employing the usual valve with all the electrodes within a glass envelope. The external anode forming part of the envelope is preferably of copper and its diameter may be 14 mm. The grid control ratio may be about 25. The filling may be mercury vapour maintained by a globule of mercury, or it may be helium at about À5 mm. pressure. Specifications 192,673, [Class 39 (i)], and 418,828 are referred to.
GB3348233A 1933-11-29 1933-11-29 Improvements in or relating to circuits comprising gasfilled triodes Expired GB423390A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB3348233A GB423390A (en) 1933-11-29 1933-11-29 Improvements in or relating to circuits comprising gasfilled triodes
FR781279D FR781279A (en) 1933-11-29 1934-11-15 Gas atmosphere oscillator
FR781650D FR781650A (en) 1933-11-29 1934-11-21 Oscillating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3348233A GB423390A (en) 1933-11-29 1933-11-29 Improvements in or relating to circuits comprising gasfilled triodes

Publications (1)

Publication Number Publication Date
GB423390A true GB423390A (en) 1935-01-31

Family

ID=10353529

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3348233A Expired GB423390A (en) 1933-11-29 1933-11-29 Improvements in or relating to circuits comprising gasfilled triodes

Country Status (2)

Country Link
FR (2) FR781279A (en)
GB (1) GB423390A (en)

Also Published As

Publication number Publication date
FR781650A (en) 1935-05-18
FR781279A (en) 1935-05-11

Similar Documents

Publication Publication Date Title
GB423390A (en) Improvements in or relating to circuits comprising gasfilled triodes
GB422729A (en) Improvements in or relating to gasfilled electric discharge devices
GB421689A (en) Improvements in or relating to electrical timing circuits
GB352353A (en) Improvements in luminous electric discharge tubes
GB351433A (en)
GB437549A (en) Improvements in or relating to electric discharge devices
GB430253A (en) Improvements in and relating to mercury thread cut-outs
GB434077A (en) Improvements in electric circuit arrangements for electric discharge devices
GB418828A (en) Improvements in or relating to gasfilled triodes, tetrodes, pentodes and the like
GB376783A (en) Improvements in or relating to thermionic valves
GB425928A (en) Improvements in electric discharge tubes
GB417498A (en) Improvements in or relating to thermionic valves and like discharge devices
GB434561A (en) Improvements in electric discharge devices
GB449355A (en) Improvements in or relating to electric discharge tube oscillation generators
GB533896A (en) Improvements in mercury circuit interrupters
GB538940A (en) Improvements in cathode constructions for x-ray tubes
GB423963A (en) Improvements in time-base circuits for cathode ray oscillographs for use, for example, in television apparatus
GB374291A (en) Improvements in or relating to gaseous electric discharge lamps
GB428678A (en) Improvements in luminous electric discharge tubes
GB528894A (en) Improvements in television transmitters
GB346193A (en) Improvements in and relating to electron discharge devices
GB264173A (en) Improvements in or relating to photo-electric cells
GB505529A (en) Improvements in gas-or vapour-filled electric discharge tubes for use in relay circuits
GB417408A (en) Improvements in gasfilled triode circuits
GB391645A (en) Improvements in or relating to photo-electric devices