(!!) (Best Single) 6J5GT Sylvania lightning logo round black plate NOS 1946 (10.4ma)

6J5GT Sylvania lightning logo round black plate NOS 1946

10.4ma 

Gm=2700

Vplate=200

Vgrid=-5

Iplate reference=7-9ma

Good Gm = 2300-2600

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