(!!!!) (Recommended Pair) 417A Western Electric NOS 1969 (28ma and 33ma)

1 matched pair) 417A Western Electric "D" getter NOS 1966-1969 1 tube) 28ma and Gm=25,800  1 tube) 33ma and Gm=28,600    Matched on Amplitrex Good used Ma range NOS 17-20ma Good used Gm range NOS 18,000 - 22,000   - LAMM LP2 phono- Wavelength Signature 45 2004- Robert Koda Takumi K-70 power amp- Psvane T-417 Reference Tube Pre-Amplifier - Supratek phono