Penta Laboratories

Penta Laboratories Penta Laboratories is a world class manufacturer and distributor of a wide range of electron tubes and vacuum tubes. Our product line covers broadcast, industrial, research, military, medical, scientific, and high-end audio applica...

Penta Laboratories Penta Laboratories is a world class manufacturer and distributor of a wide range of electron tubes and vacuum tubes. Our product line covers broadcast, industrial, research, military, medical, scientific, and high-end audio applications. We have over 8,000 stocking part numbers and an inventory far in excess of a million vacuum tubes.