Testing techniques used in the quality selection of RCA 6810 multiplier phototubes
University of California Radiation Laboratory, 1956 - Science - 18 pages
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6810 MULTIPLIER PHOTOTUBES admitted to cathode anode current anode supply voltage base pins Block diagram breakdown at points California October 16 Capacitance cathode-ray tube beam cathode-to-X causes of tube ceramic side insulator characteristic of tube connected to terminal cycle dark current observed dark current suddenly dark-adapted eye dark-current characteristic Dark-current jump occurred Darkroom defects diagram of equipment diode Dynode 1-to-X characteristic dynode 13 dynode structure focus electrode glow impedance checker impedance test interelectrode impedance interelectrode short Intermittent shorts due Kirsten Radiation Laboratory light admitted light and ions MULTIPLIER PHOTOTUBES Frederick nonlinear resistances ohms oscilloscope particles captive photocathode Phototube Testing Radiation Laboratory University RCA 6810 MULTIPLIER resistors rods of Dynodes room light SELECTION OF RCA semiconducting short sharp points short was found socket spring fingers support rods swept-voltage TESTING TECHNIQUES three traces show triangular wave form tube failures tube under test tube was tapped University of California v-i characteristic voltage breakdown