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(!!!!) (Best Single) 5AS4=5U4G Premium GE NOS 1957 (57/40 and 58/40) (higher max plate current)
(!!!!) (Best Single) 5AS4=5U4G Premium GE NOS 1957 (57/40 and 58/40) (higher max plate current)
$ 139.99
5AS4=5U4G Premium GE NOS 1957 a few vertical scratches on bottom edge of base in white box
57/40
58/50
5U4G Iplate max = 225ma
5AS4 Iplate max = 275ma
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