(!!!) (PAIR) VT-25-A Sylvania NOS and like new 1940's (34ma and 38.2ma)

1 pair) VT-25-A Sylvania 1940's in white boxes 1 tube) 34mA Gm=2500 like new - dark brown base partially faded printing 1 tube) 38.2ma Gm=3100 NOS light brown base   Tested on Amplitrex Good current range 20-30ma Vplate=300V Vgrid=-15V   General Information (Filament=7V @ 1.2A, Vplate=220V, Vgrid=-7V, Iplate=25ma, Mu=6, Rp=6Kohms) (The VT-25 is built exactly the same as a VT-52, but the plate and grid are spaced differently yielding different Mu factors and plate resistance)