(!) (- Best Single from 1950's) KT66 GEC UK NOS 1950's some scratches on glass (73ma) tested on Amplitrex

$ 259.99

1 tube) KT66 GEC NOS 1950's cup-shape getter halo (TH) date code - scratches around center of glass 

73ma Gm=6050

Tested on Amplitrex

Good Ma = 70-80ma

Good Gm = 5500-6000 

See more: vacuum tube
Scroll to top