(!!!) (PAIR) VT-25-A Sylvania NOS and like new 1940's (34ma and 38.2ma) (not the same as VT-25)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 not the same as VT 25=10Y 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