{"product_id":"12au7a-rca-p4","title":"(!!!!) (Best Pair #1) 12AU7A RCA clear top NOS and like new 1960's (9.2\/8.6ma and 10\/8.6ma) (Close Gm matching) (Best audio grade 12AU7)","description":"\u003cp\u003e1 low noise tube) 12AU7A RCA clear top NOS and like new 1960's\u003c\/p\u003e\n\u003cp\u003e1 tube) 9.2\/8.6ma Gm=2100\/1900 (1963) RCA like new - on right\u003c\/p\u003e\n\u003cp\u003e1 tube) 10\/8.6ma Gm=2200\/2000 (1960's) RCA branded HICKOK\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBest American Made 12AU7\u003c\/li\u003e\n\u003cli\u003eBalanced and smooth, good bass, musical\u003c\/li\u003e\n\u003cli\u003egood printing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTested on Amplitrex AT1000\u003c\/p\u003e\n\u003cp\u003eGood Ma range 8-10ma\u003c\/p\u003e\n\u003cp\u003eGood Gm range 1800-2200\u003c\/p\u003e","brand":"Tube World","offers":[{"title":"Default Title","offer_id":49219838476540,"sku":"12AU7A","price":118.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0333\/7633\/files\/7_1_ea49de37-134a-447f-9637-5540e0f2074a.jpg?v=1782190216","url":"https:\/\/tubeworldexpress.com\/products\/12au7a-rca-p4","provider":"Tube World Express","version":"1.0","type":"link"}