GB254178A - Improvements in vacuum tube reactivators - Google Patents

Improvements in vacuum tube reactivators

Info

Publication number
GB254178A
GB254178A GB3003925A GB3003925A GB254178A GB 254178 A GB254178 A GB 254178A GB 3003925 A GB3003925 A GB 3003925A GB 3003925 A GB3003925 A GB 3003925A GB 254178 A GB254178 A GB 254178A
Authority
GB
United Kingdom
Prior art keywords
filament
switch
meter
reactivators
transformer
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
GB3003925A
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.)
SCOTT WALTER MARTIN
Original Assignee
SCOTT WALTER MARTIN
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 SCOTT WALTER MARTIN filed Critical SCOTT WALTER MARTIN
Publication of GB254178A publication Critical patent/GB254178A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/50—Repairing or regenerating used or defective discharge tubes or lamps
    • H01J9/505—Regeneration of cathodes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W30/00—Technologies for solid waste management
    • Y02W30/50—Reuse, recycling or recovery technologies
    • Y02W30/82—Recycling of waste of electrical or electronic equipment [WEEE]

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Measuring Fluid Pressure (AREA)
  • Keying Circuit Devices (AREA)

Abstract

254,178. Scott, W. M., and Tresise, R. E. Oct. 1, 1925, [Convention date]. Vacuum tubes.-In apparatus for reactivating a thoriated tungsten filament, a filament-emission meter is used for indicating the emission at any time during the process of reactivation. As shown, the grid and anode of a valve A are connected through a meter FE with one end of the primary of a transformer T, the other end of which is connected with a contact 6. The sacondary of the transformer has several tappings controlled bv a switch L connected with the filament. In order to reactivate the filament, the switch is moved into engagement with the contact 5 so that the full voltage across the secondary is applied to the filament for half a minute. A lower voltage is then applied for 10 minutes by moving the switch on to either of the contacts 3, 4. The meter FE may be connected by moving the switch to engage with the contacts 3, 6 simultaneously.
GB3003925A 1925-10-01 1925-11-27 Improvements in vacuum tube reactivators Expired GB254178A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US254178XA 1925-10-01 1925-10-01

Publications (1)

Publication Number Publication Date
GB254178A true GB254178A (en) 1926-07-01

Family

ID=21825926

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3003925A Expired GB254178A (en) 1925-10-01 1925-11-27 Improvements in vacuum tube reactivators

Country Status (1)

Country Link
GB (1) GB254178A (en)

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