(!!!!) (Best Value Pair) 6BQ7A RCA black plates NOS "D" and "U" getter 1957 (9/16ma and 9/14.5ma)
$64.99
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1 low noise pair) 6BQ7A RCA black plates NOS 1957 1 tube) 9/16.0ma Gm=7100/8800 (KI) Mar, 1957 "D" getter 1 tube) 9/14.5ma Gm=7100/8500 (KH) Feb, 1957 "U" getter 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
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