(!!!!) (Best Pair) 6BQ7A RCA black plates NOS 1967 same date codes (15/14.5ma and 13.5/16.5ma)
$69.99
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1 low noise pair) 6BQ7A RCA black plates NOS 1967 same date codes (BM) 1 tube) 15.0/14.5ma Gm=8900/8400 1 tube) 13.5/16.5ma Gm=8400/9200 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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