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328A Western Electric

328A Western Electric "small punch" NOS 1953 in 1955 box (5.1ma)

$ 198.88

1 tube) 328A Western Electric "small punch" NOS 1953 in 1955 box 

5.1ma Gm=1700

Tested on Amplitrex

Vplate=250V

Vscreen=135V

Vgrid=-3V

Good Ma = 5.3-5.8ma

Good Gm = 1700-1800

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