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Tube Substitutions for:
 E441
 Dual-Grid Tetrode
TypeSubstitutesBase Diagram
E441U4100D, DG4101, DW1, B2_SIF, 4A15_Ultron, RS4341, DW1_Mazda, DW13, Dn44, E441N, REN704d
Web ReferencesE441 (Philips) @ Franks Electron Tubes?
E441 @ Radiomuseum


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