{"product_id":"electro-harmonix-vacuum-tube-12ax7-matched-trio-instrument-amplifier-tubes-polished-finish","title":"Electro-Harmonix 12AX7 Matched Trio Vacuum Tube Polished Finish","description":"\u003cp\u003eThe Electro-Harmonix 12AX7EH vacuum tube delivers high gain with ultra low noise and a detailed, musical tone, rivaling desirable NOS types. Its unique spiral filament design effectively eliminates filament to cathode induced hum, a common issue in amplifiers using AC on the filaments. This matched trio ensures consistent performance and sound quality for instrument amplifiers.\u003c\/p\u003e\n\n\u003cp\u003eFeatures:\n\u003cbr\u003e* Matched Trio\n\u003cbr\u003e* Matched for both gain and conductance\n\u003cbr\u003e* Spiraled filament for reduced noise\n\u003cbr\u003e* Designed for instrument amplifiers\u003c\/p\u003e","brand":"Electro-Harmonix","offers":[{"title":"Default Title","offer_id":45329839325363,"sku":"WBMUSB01IWC98JQ","price":77.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0712\/4782\/3027\/files\/617-x9s6qbL.jpg?v=1772862439","url":"https:\/\/emusicmart.com\/products\/electro-harmonix-vacuum-tube-12ax7-matched-trio-instrument-amplifier-tubes-polished-finish","provider":"Emusicmart","version":"1.0","type":"link"}