The EH 6550 is a perfect match for the Tung-Sol original. The 6550EH offers excellent linearity, power handling capacity and heat dissipation. Four-pillar construction and mica spacers help maintain a rugged mechanical reliability. Classic tone is sustained at a prolonged, high output. A new leaded glass compound is utilized to maintain vacuum integrity, balanced performance and ensure long life.
Comes as a set of 2 tubes.