(!) (PAIR) 6GM5 Sylvania branded RCA NOS (52ma and 52ma)
$ 61.99
1 pair) 6GM5 Sylvania branded RCA NOS 1970's
1 tube) 52ma Gm=9800
1 tube) 52ma Gm=9650 no printing - on right
Tested on Amplitrex
Good Current Range = 50-60ma
Good Gm range = 9500 - 10,000
See more: vacuum tube
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 (PAIR) 6GM5 Sylvania branded RCA NOS (52ma and 52ma) "Pin It")
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