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Tube Substitutions for:
U30
High-vacuum Rectifier

Type	Substitutes	Base Diagram
U30	ZA7237, CV3752
Web References	U30 (Philips) @ Franks Electron Tubes? U30 (Philips) @ Franks Electron Tubes? U30 (Osram) @ Franks Electron Tubes? U30 @ Radiomuseum

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