1 Low Noise tube) 6SN7GTB CBS black plates side-getter used/good 1961, the same plate shape as Sylvania 6SN7GTB (7.5/8.0ma)
6SN7GTB CBS black base black plates side-getter, the same shape as Sylvania 6SN7GTB used/good 1961 (7.5/8.0ma) Title: 6SN7GTB
$9.00 $29.99


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