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Tube Substitutions for:
 7A3
 Vacuum Pentode
TypeSubstitutesBase Diagram
7A3PenA4, A70C, A70D, N41, Pen4VB
Web References7A3 (Brimar) @ Franks Electron Tubes?
7A3 (Brimar) @ Franks Electron Tubes?
7A3 @ Radiomuseum


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