1 low noise tube) 5670=2C51=396A GE NOS “”D”” getter 1950”s rebranded National 1970”s
8.6ma Gm=5500
6.2ma Gm=4600
Matched on Amplitrex
Vplate=150V
Vgrid=-1.9V
Good Ma = 6 – 8ma
Good Gm = 5000-5500
5670=2C51=396A=6C3P=6N3P
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