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(!!!!!) (Recommended Pair 1957 era) 12BH7A Sylvania gray oval plates NOS

(!!!!!) (Recommended Pair 1957 era) 12BH7A Sylvania gray oval plates NOS "D" getter 1957 era (9/12ma and 9.6/11.2ma) (Art Audio, Quicksilver, Octave)

$ 139.99

1 low noise tube) 12BH7A Sylvania gray oval plates NOS 1960-1965 same build

1 tube) 9.0/12ma Gm=3000/3400 (1957 era) Sylvania

1 tube) 9.6/11.2ma Gm=2900/3200 (1957) branded Zenith

 

- detailed and open

 

recommended for:

- Octave M90 mono amps (http://www.octave.de/)
- 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
See more: vacuum tube
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