Available for purchase is a premium vintage Brimar 6V6GT-CV511 power tube. Manufactured in Great Britain, this unit represents the pinnacle of British vacuum tube engineering, featuring Black Coated Glass and high-stability Black Base construction for superior sonic performance.

Tested on the Amplitrex AT1000, the results below follow the Percentage Method relative to factory design-center specifications (Ip = 45.0 mA / Gm = 4100 µMhos). This tube is in New Old Stock (NOS) condition and tests exceptionally strong, exceeding 100% of the original factory ratings.