Dim lights in order to make the electron beam more visible. Wire up the heater and accelerator contacts (and also deflector contacts, if desired) on the tube to the power supply (or supplies). If ...
THE cathode ray tube could be employed on several present-day problems if records could be obtained at somewhat higher frequencies than those obtainable at present. The use of brighter tubes, lenses ...
APPLICATIONS of the sealed-off cathode-ray XX tube to the field of radio have been previously well treated, so the author gains by concentrating on other applications, which are shown to be wide and ...
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