絶縁 ぜつえん増幅 ぞうふく じゃありませんでした
zetsuenzōfuku kija arimasendeshita

Noun
Desu Copula

The polite, past negative form of 絶縁増幅器

1. Was not an isolation amplifier.; Wasn't an isolation amplifier.

Past/Perfective
Negative
Polite
Terminal Form
Computing