Home  Resources  References  Tubes  Forums  Links  Support  Sale 

Tube Substitutions for:
 UM81
 Mag. Fan, 1 shadow angle
TypeSubstitutesBase Diagram
UM8119DA5, UM80
Web ReferencesUM81 (Philips) @ Franks Electron Tubes?
UM81 @ Radiomuseum


© 1996-2021 Nostalgia Air