Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6826
Is Reference of Mengbuis-nl#Sense
Frequency converter tube-en#Sense
Tube convertisseur de fréquence-fr#Sense
Blandingsrør med oscillatorsystem-da#Sense
Misch-und Oszillatorröhre-de#Sense
Blandarrör med oscillatorsystem-sv#Sense
Tubo convertitore di frequenza-it#Sense
Frequency convertor tube-en#Sense
Tubo convertidor de frecuencia-es#Sense
Tubo conversor de frequência-pt#Sense
Muuntoputki-fi#Sense