(!!!!!) (Best Value Pair) 6BQ7A RCA black plates NOS “”D”” getter 1958-1959 (7.6/9ma and 7/9.6ma)

1 low noise pair) 6BQ7A RCA black plates NOS “”D”” getter 1958-1959

1 tube) 7.6/9.0ma Gm=6100/6800 (LA) 1958

1 tube) 7.0/9.6ma Gm=5900/6700 (LH) 1959

Matched on Amplitrex

Good Ma = 8-9ma

Good Gm = 6000-6400

(also see 6BZ7 and 6BK7B)

– Modwright Transporter
– Schiit Lyr amp 2011
– Don Allen
– Donald North Audio (DNA) Stratus