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
GB18049/28A
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.)
GRAMMONT ETS
Original Assignee
GRAMMONT ETS
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 GRAMMONT ETSfiledCriticalGRAMMONT ETS
Publication of GB295351ApublicationCriticalpatent/GB295351A/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
Battery Electrode And Active Subsutance
(AREA)
Abstract
295,351. Etablissements Industriels de E. C. et de A. Grammont. Aug. 10, 1927, [Convention date]. Addition to 288,965. Vacuum tubes.-The two - grid, two - anode valves of the parent Specification are provided with two cylindrical anodes 4, 5 of different diameters so that the filament-plate circuits have different characteristics when connected to a single battery. A space-charge grid 6 or additional control electrode may be provided between the larger anode 5 and the grid 3. The valve may be used in superheterodyne circuits.
GB18049/28A1927-08-101928-06-21Ionic valve with two anodes and two grids
ExpiredGB295351A
(en)