(!!) (Best Quad) 6CL6 RCA FAA NOS 1963 (35.5, 35.6, 36.2, 37.6ma)

1 quad) 6CL6 RCA FAA NOS 1963

1) 35.5ma Gm=11,750

1) 35.6ma Gm=12,300

1) 36.2ma Gm=12,350 slightly tilted glass

1) 37.6ma Gm=12,400