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Publication of FR825307ApublicationCriticalpatent/FR825307A/fr
H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
H01J31/14—Magic-eye or analogous tuning indicators
FR825307D1936-11-121936-11-12Dispositif pour le contrôle du fonctionnement des générateurs radioélectriques
ExpiredFR825307A
(fr)