1 low noise tube) 12BH7A RCA branded Westinghouse narrow black plates NOS “”U”” getter mid-1950”s

10.6ma Gm=3100

7.4ma Gm=2500

1ST SERIES MADE – VERY RARE

SINGLE TUBE NOT A PAIR

• Tested on Amplitrex
  
• Good NOS Ma range 7-12ma
• Good NOS Gm range 2400-3200
• Low Noise and not microphonic

Recommended for

– McIntosh
– VTL
– Manley
– Kora Hermes DAC in place of 12AU7
– Octave M90 mono amps (
– BLACKSTAR HT-5 (replacing Sovtek)
– Luxman MA-88 amp
– Requisite Audio preamp
– Teletronix LA-2A Compressor/Limiter
– Art Audio Diavolo amp
– Ray Samuels
– Kendrick Solo 7
– Valvet L1