(!!) (2nd Best Quad) 6CL6 RCA FAA NOS 1963 (31.6, 33, 33, 33ma)

1 quad) 6CL6 RCA FAA NOS 1963

1) 31.6ma Gm=12,200

1) 33.0ma Gm=11,900

1) 33.0ma Gm=12,200 slightly tilted glass

1) 33.0ma Gm=11,450