FR625519A - Improvements relating to thermionic devices - Google Patents

Improvements relating to thermionic devices

Info

Publication number
FR625519A
FR625519A FR625519DA FR625519A FR 625519 A FR625519 A FR 625519A FR 625519D A FR625519D A FR 625519DA FR 625519 A FR625519 A FR 625519A
Authority
FR
France
Prior art keywords
improvements relating
thermionic devices
thermionic
devices
relating
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
Other languages
French (fr)
Inventor
Sydney Leopold Price
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 filed Critical
Application granted granted Critical
Publication of FR625519A publication Critical patent/FR625519A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
    • H01J1/02—Main electrodes
    • H01J1/13—Solid thermionic cathodes
    • H01J1/20—Cathodes heated indirectly by an electric current; Cathodes heated by electron or ion bombardment
FR625519D 1925-12-01 1926-12-01 Improvements relating to thermionic devices Expired FR625519A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3034525A GB266476A (en) 1925-12-01 1925-12-01 Improvements relating to thermionic devices

Publications (1)

Publication Number Publication Date
FR625519A true FR625519A (en) 1927-08-12

Family

ID=10306153

Family Applications (1)

Application Number Title Priority Date Filing Date
FR625519D Expired FR625519A (en) 1925-12-01 1926-12-01 Improvements relating to thermionic devices

Country Status (2)

Country Link
FR (1) FR625519A (en)
GB (1) GB266476A (en)

Also Published As

Publication number Publication date
GB266476A (en) 1927-03-01

Similar Documents

Publication Publication Date Title
FR623824A (en) Improvements to anti-glare devices
FR607628A (en) Improvements to transmission devices
FR625519A (en) Improvements relating to thermionic devices
FR622448A (en) Improvements to removable structures
FR603961A (en) Improvements to radiotelegraph amplifying devices
FR569581A (en) Improvements to thermionic devices
FR570413A (en) Improvements to thermionic devices
FR608158A (en) Improvements to revivals
FR605808A (en) Improvements to shoehorns
FR605135A (en) Improvements to revivals
FR615366A (en) Improvements to aeromotors
FR605038A (en) Headphone-selectors improvements
FR620067A (en) Punch-cutters improvements
FR607685A (en) Improvements to altimeters
FR607778A (en) Improvements to filing devices
FR608416A (en) Improvements to differentials
FR593838A (en) Eiderdown improvement
FR574191A (en) Improvements to radio-receiver devices
FR594483A (en) Improvements to obturators
FR596034A (en) Improvements to thermionic valves
FR604217A (en) Improvements to cooling devices
FR614019A (en) Improvements to electronic devices
FR617708A (en) Improvements to thermionic lamp circuits
FR606236A (en) Improvements to insulators
FR610253A (en) Improvements to electromagnetic devices