6 Vintage Audio Vacuum Tubes GE SYLVANIA 12AU7 Grey Plates Halo Matched Pair $10.00 USD Sold on: 2014-Feb-09 Marketplace: eBay 1 Treasure 0 Trash 100% Detail: Lot of 6 vintage audio vacuum tubes up for auction, GE & Sylvania. Tube number : 12AU7 9-Pin all have grey plates, 2 sets with halo getters, the other has D getters. The Sylvania sets are matched ... More Relevance Historical Items
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