1 low noise tube) 12BH7 GE Delco gray oval plates “”U”” getter NOS 1950”s
faded printing
7ma Gm=2400
8ma Gm=2400
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


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