(!!!) (Recommended Pair) 6AC7 RCA NOS 1970 era (10.0ma and 10.5ma)
$18.99
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1 pair) 6AC7 RCA NOS 1970 era 1 tube) 10.0ma Gm=9500 1 tube) 10.5ma Gm=10,000 Good Ma range 7-10ma Good Gm = 8000-9000 - Mr. Liang Audio 845-3- Welbourne Laurel IIx SET (WE 300B)- JAS Bravo 2.3 integrated amp
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