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
GB3717/55A
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.)
Philips Electrical Industries Ltd
Original Assignee
Philips Electrical Industries 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 Philips Electrical Industries LtdfiledCriticalPhilips Electrical Industries Ltd
Publication of GB781385ApublicationCriticalpatent/GB781385A/en
H01J19/30—Non-electron-emitting electrodes; Screens characterised by the material
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J2893/00—Discharge tubes and lamps
H01J2893/0001—Electrodes and electrode systems suitable for discharge tubes or lamps
H01J2893/0012—Constructional arrangements
H01J2893/0019—Chemical composition and manufacture
H01J2893/002—Chemical composition and manufacture chemical
Landscapes
Electron Sources, Ion Sources
(AREA)
Abstract
A grid wire for a thermionic valve is an alloy of Ti with not more than 10 per cent of the metals W, Mo or Re. Specifications 641,581 and 734,311 [both in Group XL(a)] are referred to.
GB3717/55A1954-02-081955-02-08Improvements in or relating to electrodes for electron discharge devices
ExpiredGB781385A
(en)