(!!!) 286A Western Electric Engraved Base NOS 1930's (6.6ma)
$139.99
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286A Western Electric "engraved base" NOS 1930's in white box, large getter 6.6ma Gm=1200 Variable-mu voltage amplifier pentode with cathode Vfil = 2V @ 1.6A Vplate=180 Iplate = 5.5-6ma Gm=1100-1200
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