{"product_id":"1-tested-strong-sylvania-6dw4b-tube-date-code-kua-half-wave-vacuum-rectifier","title":"(1) Tested Strong Sylvania 6DW4B Tube Date Code KUA Half Wave Vacuum Rectifier","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: Arial;\"\u003e(1) Tested Strong Sylvania 6DW4B Tube.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: Arial;\"\u003eDate Code KUA.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: Arial;\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: Arial;\"\u003eThe manufacturer's name and tube number have both been completely worn off from the glass. The little bit of yellow paint remnant and internal structure leads us to believe this may be a Sylvania tube. It has only an etch code of KUA on the glass.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eTested on a \u003cb\u003ecalibrated\u003c\/b\u003e Knight KG-600B tube tester with \u003cb\u003eno shorts\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eand\u003cb\u003e no leaks\u003c\/b\u003e where 50 is minimum pass\/good with the following results:\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eSylvania = 92\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cb\u003e~ Please view all 4 photos ~\u003c\/b\u003e\u003c\/div\u003e","brand":"Classic Currents","offers":[{"title":"Default Title","offer_id":47623556628735,"sku":null,"price":9.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/5999\/3343\/files\/s-l1600-60_8f1ec616-0fe1-45fc-aff3-ea8baf25e8a8.webp?v=1764824839","url":"https:\/\/classiccurrents.com\/products\/1-tested-strong-sylvania-6dw4b-tube-date-code-kua-half-wave-vacuum-rectifier","provider":"Classic Currents","version":"1.0","type":"link"}