Offered here is a rare vintage Mullard 6V6GT power tube, a hallmark of British vacuum tube excellence. This unit features the distinctive Black Coated Glass and sturdy Black Base, embodying the sonic richness and durability Mullard is world-renowned for.

This tube has been carefully verified on the Amplitrex AT1000. The results below utilize the Percentage Method against original factory design-center specs (Ip = 45.0 mA / Gm = 4100 µMhos). It tests with healthy emission and transconductance, making it an ideal choice for restoring vintage British amplifiers or high-end audio setups.