Sylvania Red Print 6SN7GTB 6SN7 6SN7GT VT231 strong matched used quad tubes $58.00 USD Sold on: 2014-Mar-15 Marketplace: eBay 7 Treasure 0 Trash 100% Detail: You are looking at a very nice matched quad of red print Sylvania 6SN7GTB tubes one from batch kj BMK and three from af AEY. All are in very nice condition the bases are tight with no cracks or chips.... More Relevance Historical Items
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