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Tube Substitutions for:
UBL1
Double Diode-Pentode

Type	Substitutes	Base Diagram
UBL1
Web References	UBL1 (Philips) @ Franks Electron Tubes? UBL1 (Philips) @ Franks Electron Tubes? UBL1 (Philips) @ Franks Electron Tubes? UBL1 @ Radiomuseum

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