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STRONG 2% matched QUAD RCA 12au7A CLEAR TOPS FOR CONN $16.95 USD Sold on: 2013-Mar-29 Marketplace: eBay  1 Treasure 0 Trash   100% Detail:MATCHED QUAD RCA 12AU7A CLEAR TOP vintage electron tubes made in USA. THESE TUBES TEST WELL AT OVER 100% OF NOS, AND WERE CHECKED ON TWO SEPARATE TESTERS FOR VERIFICATION. EACH TUBE TEST WITHIN 2% OF ...  More Relevance Historical Items |
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