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Tube Substitutions for:
UF21
Vacuum Pentode
TypeSubstitutesBase Diagram
UF21
Web ReferencesUF21 (Philips) @ Franks Electron Tubes?
UF21 (Philips) @ Franks Electron Tubes?
UF21 (Philips) @ Franks Electron Tubes?
UF21 @ Radiomuseum


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