{"product_id":"best-overall-pair-ecf80-6bl8-telefunken-germany-bottom-nos-1971-p1a","title":"(!!!!!) (Best Overall Pair) ECF80=6BL8 Telefunken Germany \u003c\u003e bottom NOS 1971 (13\/9.0ma and 12.8\/8.8ma) (1-2% matched) (best sound)","description":"\u003cp\u003e\u003cstrong\u003e1 pair) ECF80=6BL8 Telefunken Germany \u0026lt;\u0026gt; bottom NOS 1971 partially faded printing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e1 tube) 13.0ma Gm=5400 and 9.0ma Gm=6200 (triode\/pentode) \u003c\/p\u003e\n\u003cp\u003e1 tube) 12.8\u003cspan\u003ema Gm=5400 and 8.8ma Gm=6100 (triode\/pentode) \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eMatched on Amplitrex\u003c\/p\u003e\n\u003cp\u003eGood Triode Ma\/Gm=11-14ma Gm=4500-5000\u003c\/p\u003e\n\u003cp\u003eGood Pentode Ma\/Gm=8-10ma Gm=5500-6000\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch1\u003eRecommended for\u003c\/h1\u003e\n\u003cp\u003e- McIntosh MR67, MR71 FM Stereo tuner\u003cbr\u003e- Telefunken radio\u003cbr\u003e- Graaf GM 100 amplifier\u003cbr\u003e- HH Scott 350 Tuner 1961-2\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Tube World","offers":[{"title":"6BL8 Telefunken","offer_id":48473568870652,"sku":"6BL8tel","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0333\/7633\/files\/4_8347705f-7f58-4d31-896b-ddeb9e66313c.jpg?v=1778785084","url":"https:\/\/tubeworldexpress.com\/products\/best-overall-pair-ecf80-6bl8-telefunken-germany-bottom-nos-1971-p1a","provider":"Tube World Express","version":"1.0","type":"link"}