High resistance continuous shield for reduced capacitive coupling in a deflection yoke

High resistance continuous shield for reduced capacitive coupling in a deflection yoke

Capacitive coupling between coils of an electron beam deflection yoke and between coils and the electron tube is reduced by electrostatic shields. The shields are continuous for best shielding. Eddy currents flow in the shield resulting from the magnetic beam deflection fields results in field disto...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: MCCOY, JOHN F
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Beschreibung
Zusammenfassung:Capacitive coupling between coils of an electron beam deflection yoke and between coils and the electron tube is reduced by electrostatic shields. The shields are continuous for best shielding. Eddy currents flow in the shield resulting from the magnetic beam deflection fields results in field distortion and power loss. The eddy current flow and the power loss are reduced by using a nickel chromium alloy material for the shield.