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Tube Substitutions for:
408A
Vacuum Pentode

Type	Substitutes	Base Diagram
408A	6028
Web References	408A (RCA (HB3)) @ Franks Electron Tubes 408A (Sylvania) @ Franks Electron Tubes 408A @ RadioMuseum.org

Type 408A
Vacuum Pentode


MECHANICAL DATA

Basing

7BD

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