Up for sale is an exceptional matched quad lot of 4 vintage Mullard 6080 dual power triode valves, brand new in their original vintage yellow/blue Haltron boxes. Made in the USA, these heavy-duty industrial valves feature rugged metal base shells, robust triple mica vibration-resistant internal construction, deep black plates, and top-mounted ring getters.

As featured in  all 4 units have been thoroughly bench-tested on our laboratory-grade Amplitrex AT1000 digital tube testing system. The measured plate current Ip and transconductance Gm results are calculated against factory specifications 100 mA / 5800 uMhos and organized below.