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Tube Substitutions for:
K81A
Noise Diode

Type	Substitutes	Base Diagram
K81A	R290
Web References	K81A (Philips) @ Franks Electron Tubes? K81A (Philips) @ Franks Electron Tubes? K81A (Philips) @ Franks Electron Tubes? K81A @ Radiomuseum

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