(!!!) (Best RCA Pair) 5879 RCA branded GE NOS 1974 (2.2ma and 2.0ma)
$ 31.99
1 pair) 5879 RCA branded GE NOS 1974 (LI)
1 tube) 2.2ma Gm=1100
1 tube) 2.0ma Gm=1000
Matched on Amplitrex
Vplate=250
Vscreen=100V
Vgrid=-3
Good Ma range 1.5-1.8ma
Good Gm range 800-1000
- Divided by 13 RSA 31 amp
- Divided by 13 JRT 9/15
- AMPEX 620/621
See more: vacuum tube
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 (Best RCA Pair) 5879 RCA branded GE NOS 1974 (2.2ma and 2.0ma) "Pin It")