(!!!!) (Best Pair 1930's) 30 Sylvania engraved base NOS 1930's (3.2ma and 3.4ma) (same Gm)
$38.88
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1 pair) 30 Sylvania engraved base NOS 1930's original boxes1 tube) 3.2ma Gm=9001 tube) 3.4ma Gm=900
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