演算 えんざん増幅 ぞうふく ではありませんでした
enzanzōfukukidewārimasendeshita

Noun
Desu Copula

The polite, past negative form of 演算増幅器

1. Was not an operational amplifier.; Was not a calculation amplifier.

Past/Perfective
Negative
Polite
Formal Register
Computing