Lot of GE USAF & RCA JRC 6189 12AU7 WA Preamp Tubes $16.73 USD Sold on: 2013-Mar-11 Marketplace: eBay 3 Treasure 0 Trash 100% Detail: This auction is for a Lot of GE USAF & RCA JRC 6189 12AU7 WA Preamp Tubes. They GE'shave gray plates, a top round getter, the RCA's have black plates and a top square getter and all are in good cl... More Relevance Historical Items
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