(!!!) (Slightly Microphonic Single) 5670=2C51 Tungsol black plates "D" getter NOS 1958 (9.6/10.2ma)
1 slightly microphonic low noise tube) 5670=2C51 Tungsol black plates "D" getter NOS 1958 1 section) 9.6ma Gm=6000 1 section) 10.2ma Gm=6400 Amplitrex Test Specs: Vplate=150V Vgrid=-1.9V Good Ma = 6 - 8ma Good Gm = 5000-5500 5670 is sub for 6N3P Chinese 5670=2C51=396A=6N3P nice detail, good bass Recommended for - Maverick Audio D2 (2013) - Maverick Tube Magic D1 preamp HD-22- Glo Amp 1- Elekit TU-882R (headphone amp) 2009- Grant Fidelity DAC 09- Sophia baby amp - Bottlehead Paramount 300B 1.1- Sophia Electric Baby- Bock 251 (microphone)- Pendulum Audio Quartet I mic pre- BADA- Singlepower driver- MHZS CD player CD33F- MHDT Labs Stockholm Balanced - Bottlehead Paramount- Eddie Current EC-01- Eddie Current Lunchbox II- YARLAND FV34AIII SE EL34 amp- Manley Labs Jumbo Shrimp preamp