The World's Finest Power Tubes

SED, one of the oldest current manufacturers of vacuum tubes, has a reputation as the world leader in vacuum tube production. With stringent quality control and the best raw materials, SED offers the ultimate sound to musicians and audiophiles alike.

Production of SED glass tubes ceased in 2012.

Production of SED glass tubes ceased in 2012 and there is currently no intention to recommence production. The remaining supplies of tubes is limited and are treated as NOS stock and priced accordingly.

Any change from this situation will be announced as soon as practicable..