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Tube Substitutions for:
DL21
Vacuum Pentode
Type
Substitutes
Base Diagram
DL21
MDL21
Web References
DL21 (Philips) @ Franks Electron Tubes?
DL21 (Philips) @ Franks Electron Tubes?
DL21 (Philips) @ Franks Electron Tubes?
DL21 @ Radiomuseum
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