(!!!) (Single) 6SN7GTA Westinghouse USA black plates NOS 1950's (7.0/7.6ma)

1 Low Noise Tube) 6SN7GTA Westinghouse USA black plates NOS "O" getter halo 1950's

7.0ma Gm=2500

7.6ma Gm=2600

Good Ma range 7-10ma

Good Gm range 2400-2600

- 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