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
GB1133741A
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
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 Gloeilampenfabrieken NVfiledCriticalPhilips Gloeilampenfabrieken NV
Priority to GB1133741ApriorityCriticalpatent/GB550435A/en
Publication of GB550435ApublicationCriticalpatent/GB550435A/en
H01J21/20—Tubes with more than one discharge path; Multiple tubes, e.g. double diode, triode-hexode
H—ELECTRICITY
H01—ELECTRIC ELEMENTS
H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
H01J2893/00—Discharge tubes and lamps
H01J2893/003—Tubes with plural electrode systems
Landscapes
Discharge Lamp
(AREA)
Abstract
550,435. Thermionic valves. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Sept. 4, 1941, No. 11337. [Class 39 (i)] A valve for use in push-pull arrangements comprises a single cathode 5 having two separate emitting surfaces in the form of segments of cylinders at the centres of which strip-like anodes 8, 9 are placed. A grid or grids 6, 7 are interposed in each electron path ; they are shaped concentrically with the cathode surfaces. Specification 507,270 is referred to.
GB1133741A1941-09-041941-09-04Improvements in or relating to electric discharge tubes
ExpiredGB550435A
(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
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