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(!!!) (Recommended Pair) 311B WE used/good 1960-1961 partially faded getters (24.5ma and 26.5ma)
(!!!) (Recommended Pair) 311B WE used/good 1960-1961 partially faded getters (24.5ma and 26.5ma)
$ 109.99
1 pair) 311B WE used/good 1960-1961 in white boxes
1 tube) 26.5ma Gm=2500 (6152=1961)
1 tube) 24.5ma Gm=2400 (6052=1960)
Tested on Amplitrex
Vplate=180V
Vscreen=135V
Vgrid=-15V
Good Ma = 30ma
Good Gm = 2900
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