(!!!!) (Best Pair) 6DN7 RCA NOS 1960's (30ma/9.6ma and 34ma/8.5ma)
By Tube World
$ 44.99
1 matched pair) 6DN7 RCA NOS 1960's
1 tube) 30ma Gm=7800 and 9.6ma Gm=2600
1 tube) 34ma Gm=7700 and 8.5ma Gm=2300
Tested on Amplitrex
1 section) Good NOS Ma=35-40ma and Gm=7000-7700
1 section) Good NOS Ma=7-8ma and Gm=2500
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