(!!!) (Recommended RCA Pair) 6F6 RCA metal can NOS 1950's - 1960 (39ma and 41ma)
$ 44.99
1 pair) 6F6 RCA metal can NOS 1950's - 1960
1) 39ma Gm=2500 (1950's) silver printing
1) 41ma Gm=2700 (1960 era) red printing
Matched on Amplitrex
Good NOS Ma = 30-35ma
Good NOS Gm = 2300-2500
See more: vacuum tube