(!!!) (Best Value Single 1965) 12AX7=ECC83 Siemens Germany ribbed plates used/good (0.9/0.8ma and Gm=1500/1400)

1 low noise tube) 12AX7=ECC83 Siemens Germany ribbed plates “”o”” getter halo 1965 used/good in white box – fair printing – (162 series)

1 section) Gm=1500 (0.9ma)

1 section) Gm=1400 (0.8ma)

recommended for:

Manley Reference Cardioid Microphone REFCARD (Manley Ref C)