MATCHED PAIR Sovtek 2A3 is one of the best values in direct heated triodes today. Compares very favorably to NOS 2A3...

Platinum Matched Pair Consistent, solid and reliable. The construction of gold-plated molybdenum alloy grid,...

This valve has been engineered for the discerning audiophile or musician. Receiving rave reviews for its superior tone...

PLATINUM MATCHED PAIR The 6550EH offers excellent linearity, power handling capacity, heat dissipation. Four-pillar...

2X PREMIUM MATCHED 24 HOUR BURN IN THEN PAIRED “The BEST 300B in the world!!!” Ceramic base. Gold plated grid for...

PLATINUM MATCHED PAIR KT88 UPGRADE The Electro Harmonix KT90-EH tube is a direct replacement for any KT88 or 6550...