(!) (Good Single) 6SN7GTB Westinghouse USA gray plates "O" getter halo NOS 1961 (8.0/9.4ma)

1 Low Noise tube) 6SN7GTB Westinghouse USA gray plates "O" getter halo NOS 1961

1 section) 8.0ma Gm=2600

1 section) 9.4ma Gm=2800

- Conrad-Johnson CAV-50 intergrated amp
- Atma-Sphere MA-1 Mk II.2 Amplifier
- Antique Sound Lab AQ1006 Mono Block amps
- CARY preamps and amps
- Rogue Metis 2004
- Wright Sound