(!) 12BH7A Toshiba rebranded "Bell and Howell Schools" like new 1960's (9/10.4ma)

1 low noise tube) 12BH7A Toshiba rebranded "Bell and Howell Schools" like new 1960's in white box

1 section) 10.4ma Gm=2900

1 section) 9.0ma Gm=2700

- Octave M90 mono amps (http://tubeworldexpress.shop/)
- 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