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.)
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.)
Siemens and Halske AG
Original Assignee
Siemens and Halske AG
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 Siemens and Halske AGfiledCriticalSiemens and Halske AG
Priority to ES0027542UpriorityCriticalpatent/ES27542Y/en
Publication of ES27542UpublicationCriticalpatent/ES27542U/en
Application grantedgrantedCritical
Publication of ES27542YpublicationCriticalpatent/ES27542Y/en
Electron beam tube for the production of short electric waves in pulse operation, characterized by a cathode preferably indirectly heated having a support coated with a barium or strontium alloy, as well as a winding of wires or tapes located closely adjacent metal high melting point, which covers the alloy capable of emitting. (Machine-translation by Google Translate, not legally binding)
ES0027542U1951-07-261951-07-26
Electron beam tube
ExpiredES27542Y
(en)
Arrangement for preventing the afterglow ofthe steady luminous spot afterthe switching-off of apparatus employing cathode-ray tubes, particularly television sets