(!!!) (Best Pair) 244A Western Electric NOS ST-14 “”Engraved Base”” 1930”s – 1940 (4.1ma and 5ma) (close Gm)

1 pair) 244A Western Electric NOS ST-14 “”Engraved Base”” 1930”s

1 tube) 5.0ma Gm=900

support rods slightly tilted inside glass, but plate and cathode are perfectly centered

tilt does not effect tube performance

1 tube) 4.1ma Gm=800

Vplate=120V

Vgrid=-6V

Good Ma = 4ma

Good Gm = 890

2V Filament

Developed in 1929

Superb Sound with Mesh-Plate