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Tube Substitutions for:
UCH4
Triode-Heptode
Type
Substitutes
Base Diagram
UCH4
20CH4U
Web References
UCH4 (Philips) @ Franks Electron Tubes?
UCH4 (Philips) @ Franks Electron Tubes?
UCH4 (Philips) @ Franks Electron Tubes?
UCH4 @ Radiomuseum
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