{"product_id":"jj-ecc99-preamp-vacuum-tube","title":"JJ ECC99 Preamp Vacuum Tube","description":"\u003cp\u003eThe JJ ECC99 is a versatile double triode vacuum tube engineered for demanding audio applications. Ideal as a driver stage for power triodes like 300B and 2A3, it excels in output stage designs, headphone amplifiers, preamplifiers, and CD players. Perfect for small-format push-pull triode amplifiers running Class A topology (10W configurations with 4x ECC99), it also serves as a parallel voltage supply tube. A direct substitute for 5687, E182CC, 6840, and 6BL7 tubes, the ECC99 delivers the reliability and sonic characteristics Ruby Tubes customers expect from premium tube stock.\u003c\/p\u003e","brand":"JJ Electronics","offers":[{"title":"Default Title","offer_id":49071360049460,"sku":"JJ-ECC99-P-DEFAU","price":25.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0735\/0206\/4948\/files\/ecc99_jj_tube.jpg?v=1774461109","url":"https:\/\/rubytubes.com\/products\/jj-ecc99-preamp-vacuum-tube","provider":"Ruby Tubes","version":"1.0","type":"link"}