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Tube Substitutions for:
407A
Double Triode
TypeSubstitutesBase Diagram
407A
Web References407A (RCA (HB3)) @ Franks Electron Tubes?
407A (Tung-Sol) @ Franks Electron Tubes?
407A (Sylvania) @ Franks Electron Tubes?
407A (LM Ericsson) @ Franks Electron Tubes?
407A @ Radiomuseum


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