(!!) 5751 Sylvania misbranded 12AX7WA NOS 1960”s (1.9/1.9ma)

1 low noise tube) 5751 Sylvania misbranded 12AX7WA NOS 1960”s in white box

1 section) 1.9ma Gm=1500

1 section) 1.9ma Gm=1400

Tested on Amplitrex

Vplate=250V

Vgrid=-2V

Good Ma = 2ma

Good Gm = 1500-1600

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