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Tube Substitutions for:
EL503
Beam Power Tube

Type	Substitutes	Base Diagram
EL503
Web References	EL503 (Mazda-Belvu) @ Franks Electron Tubes EL503 (Mazda) @ Franks Electron Tubes EL503 @ RadioMuseum.org

Type EL503
Beam Power Tube


MECHANICAL DATA

Basing

9QB

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