(!!) 396A=2C51 Western Electric used 1967 (9.6/7.0ma) (mis-matched Gm)
1 tube) 396A=2C51 Western Electric "D" getter halo used 1967 in white box - mis-matched triode sections
1 section) 9.6ma Gm=6100
1 section) 7.0ma Gm=4100
Amplitrex Test Specs:
Vplate=150V
Vgrid=-1.9V
Good Ma = 6 - 8ma
Good Gm = 5000-5500
5670 is sub for 6N3P Chinese
5670=2C51=396A=6N3P
nice detail, good bass
Recommended for
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 396A=2C51 Western Electric used 1967 (9.6/7.0ma) (mis-matched Gm) "Pin It")
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