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Tube and method of manufacturing the same
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Electrical circuit for cold cathode tubes
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Wave repeating system and apparatus
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Device for coupling the high-frequency oscillation circuits of two amplifier stages
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Arrangement to restrict and suppress the feedback
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Method and arrangement for reducing electrical interference when receiving high-frequency vibrations
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Improvements in circuits including electric discharge devices
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Improvements in or relating to electric discharge devices and circuits associated therewith
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Improvements in electric discharge devices and circuits used therewith
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Electric discharge amplifying tubes and method of operating the same
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Improvements in or relating to radio and the like signal reception
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Methods and systems of controlling regeneration in electron discharge devices or the like
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Improvements relating to gaseous electric discharge devices
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Improvements in gas or vapor filled electric discharge devices
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Wave signaling method and apparatus
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Coupling system and apparatus
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Electric discharge device
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Electrical repeater
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Method and apparatus for amplifying or detecting electrical variations
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Electrode for discharge devices
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