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
GB13975/39A
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.)
Mullard Radio Valve Co Ltd
Original Assignee
Mullard Radio Valve Co 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 Mullard Radio Valve Co LtdfiledCriticalMullard Radio Valve Co Ltd
Publication of GB525595ApublicationCriticalpatent/GB525595A/en
H01J43/02—Tubes in which one or a few electrodes are secondary-electron emitting electrodes
Landscapes
Electron Sources, Ion Sources
(AREA)
Abstract
525,595. Electron multipliers. MULLARD RADIO VALVE CO., Ltd. May 10, 1939, No. 13975. Convention date, May 13, 1938. [Class 39 (i)] The electron stream from the cathode 1 is directed in curved paths on to the secondary emitting electrode 3 by a surrounding electrode 7 in the form of a hollow sphere, cylinder, hyperboloid or other solid of revolution. Specification 500,356 is referred to.
GB13975/39A1938-05-131939-05-10Improvements in electric discharge tubes
ExpiredGB525595A
(en)
Improvements in or relating to circuit arrangements comprising discharge tube having atleast a cathode, a control grid, an anode andan auxiliary cathode emitting electrons under bombardment by electrons