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JW-5755=420A WE NOS 1958 original box (1.5/1.7ma)

JW-5755=420A WE NOS 1958 original box (1.5/1.7ma)

$ 35.99

1 tube) JW-5755=420A WE NOS 1958 original box

1.5ma Gm=1100 (60% Gm)

1.7ma Gm=1300 (80% Gm)

 

Tested on Amplitrex

Vplate=180V

Vgrid=-.1V

Good Ma = 1.8-2.3ma

Good Gm = 1500

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