KT90
= KT90
{wiki=KT90}
KT90 refers to a type of vacuum tube, specifically a beam power pentode tube used in audio and other electronic applications. It's known for its ability to deliver high power and is often used in audio amplifiers, specifically in hi-fi audio equipment. The KT90 is part of a family of tubes that includes other variants like the KT88 and KT77, but it is characterized by its own specific electrical and performance specifications.