(!!!) (4th Best Pair) CK-5755=420A Raytheon clear top NOS 1965 (1.7/1.8ma and 1.8/1.9ma)
$ 37.99
1 pair) CK-5755=420A Raytheon clear top NOS 1965
1 tube) 1.7/1.8ma Gm=1400/1400
1 tube) 1.8/1.9ma Gm=1400/1450
Matched on Amplitrex
Vplate=180V
Vgrid=-.1V
Good Ma = 1.5-2.2ma
Good Gm = 1400-1600
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