真空 しんくう蛍光 けいこう かんじゃなかったです
shinkūkeiko ukanja nakattadesu

Noun
Desu Copula

The polite, past negative form of 真空蛍光管

1. Wasn't a vacuum tube.; Wasn't a vacuum fluorescent display.

Past/Perfective
Negative
Polite
Casual Register