quad triple getter GE 6550A tubes 2 good 2 weak international KT88 label $54.00 USD Sold on: 2013-Apr-15 Marketplace: eBay 2 Treasure 0 Trash 100% Detail: quad GE 6550A tubes ( 2 have International KT88 label) 2 tubes test 80-85%, other 2 test weak More Relevance Historical Items
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