Electro-Harmonix 6550 - Platinum Matched

Superior high-power Octal Beam Tetrode, suitable for any amp using 6550 or KT88. Designed to hold up in even the most punishing environment of high powered bass amps, such as Ampeg SVT.

See unmatched version: https://shop.ehx.com/item/6550EH

Tube Specs: http://shop.ehx.com/catalog/tubes-specs/KT88EH.pdf