(!!) 5751W1 Sylvania triple mica "O" getter halo used/good early 1960's misbranded 12AX7WA (1.8/2.0ma)

1 low noise tube) 5751W1 Sylvania triple mica "O" getter halo used/good early 1960's misbranded 12AX7WA in white box

1 section) 1.8ma Gm=1400

1 section) 2.0ma Gm=1500

Tested on Amplitrex

Vplate=250V

Vgrid=-2V

Good Ma = 2ma

Good Gm = 1500-1600

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