1 slightly microphonic low noise tube) 12BH7 GE Zenith NOS curved gray plates “”U”” getter (3-43=1953)
1 section) 10.0ma Gm=2900
1 section) 10.6ma Gm=3000
smooth sound, good detail and low noise
Tested on Amplitrex
Good Ma range 8-12ma
Good Gm range 2800-3000
recommended for:
– Octave M90 mono amps (
– Quicksilver Audio V4 mono amp
– Quicksilver Triode amp
– Thor
– Doshi Alaap preamp
– Art Audio Diavolo
– Vexo S40 amp
– Art Audio Carissa Signature amp
– Art Audio PX25 amp
– Universal Audio LA2A


0.0 Average Rating Rated (0 Reviews)