(4) Sylvania 12AX7A Twin Triodes used OK Tested! Audio Radio Vintage Tubes $63.99 USD Sold on: 2013-Jan-04 Marketplace: eBay 6 Treasure 0 Trash 100% Detail: Up for bids is a lot of (4) good used 12AX7A twin triode tubes by Sylvania. The tubes test good on my EICO dynamic tester and they show no shorts. The test readings are strong-weak or feeble tubes are... More Relevance Historical Items
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