Home  Resources  References  Tubes  Forums  Links  Support  Sale 

Tube Substitutions for:
UCH21
Triode-Heptode

Type	Substitutes	Base Diagram
UCH21	UCH71, VUCH21
Web References	UCH21 (Tesla) @ Franks Electron Tubes? UCH21 @ Radiomuseum

© 1996-2021 Nostalgia Air