{"product_id":"1-tested-philco-6k6gt-tube-sylvania-date-code-312-54-21-philco-6k6-gt","title":"(1) Tested Philco 6K6GT Tube Sylvania Date Code 312 54-21 Philco 6K6 GT","description":"\u003cdiv style=\"text-align: center;\"\u003e\u003cspan\u003e\u003cspan style=\"font-family: Arial;\"\u003e(1) Tested Philco 6K6GT Tube.\u003c\/span\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eDate Code 54-21.\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003eThe 312 EIA code indicates this tube was made by\u003cspan\u003e \u003c\/span\u003e\u003ci\u003eSylvania\u003c\/i\u003e\u003cspan\u003e \u003c\/span\u003efor Philco.\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv\u003e\u003cspan\u003eTested on a calibrated Hickok TV-10 military tube tester\u003cb\u003e\u003c\/b\u003e with \u003cb\u003eno shorts\u003c\/b\u003e and \u003cb\u003eno leaks\u003c\/b\u003e with the following results:\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\u003cspan\u003eTest = 1600 micromhos\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cspan\u003eMinimum pass\/good = 1000\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\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":47931316830463,"sku":null,"price":8.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0788\/5999\/3343\/files\/s-l1600-15_8df60348-c510-43c7-97fc-37e982ecddaa.webp?v=1766350104","url":"https:\/\/classiccurrents.com\/products\/1-tested-philco-6k6gt-tube-sylvania-date-code-312-54-21-philco-6k6-gt","provider":"Classic Currents","version":"1.0","type":"link"}