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 (http://tubeworldexpress.shop/)
- 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