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Tube Substitutions for:
 U12
 Full-Wave Vacuum Rectifier
TypeSubstitutesBase Diagram
U12FW
Web ReferencesU12 (Marconi) @ Franks Electron Tubes?
U12 (Osram) @ Franks Electron Tubes?
U12 (Marconi) @ Franks Electron Tubes?
U12 @ Radiomuseum


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