{"title":"Amplifier Vacuum Tubes","description":"\u003cp\u003eAmplifier vacuum tubes for guitar amps, hi-fi amplifiers and vintage audio gear. This collection brings together the preamp, power and rectifier tubes used in tube amplifiers, from guitar amp staples like the 12AX7, EL34, 6L6 and EL84 to hi-fi types like the KT88, 6SN7 and 2A3. Many types are available as matched pairs and quads.\u003c\/p\u003e\n\u003ch2\u003eTested, used and NOS tubes\u003c\/h2\u003e\n\u003cp\u003eUsed tubes are tested before they ship. New old stock (NOS) tubes are unused original stock and are not always tested, so check each listing for the tube's condition before you order.\u003c\/p\u003e\n\u003ch2\u003ePreamp tubes\u003c\/h2\u003e\n\u003cp\u003ePreamp tubes are small dual triodes that set gain and shape tone in the first stages of an amp. The 12AX7 (ECC83) is the most common guitar amp preamp tube. The 12AT7 (ECC81) often drives reverb circuits and phase inverters, while the 12AU7 (ECC82) and 5751 give lower gain and more headroom. Hi-fi preamps and headphone amps often use the 6SN7, 6SL7 or 6DJ8.\u003c\/p\u003e\n\u003ch2\u003ePower tubes\u003c\/h2\u003e\n\u003cp\u003ePower tubes, also called output tubes, drive the speaker through the output transformer. The EL34 is tied to British-voiced amps, the 6L6 and 5881 to American-voiced amps, and the EL84 and 6V6 to lower-wattage amps. The KT88, 2A3 and 7591 show up in many hi-fi amplifiers.\u003c\/p\u003e\n\u003ch2\u003eRectifier tubes\u003c\/h2\u003e\n\u003cp\u003eRectifier tubes convert AC to DC in the amp's power supply. The 5AR4 (GZ34), 5U4 and 5Y3 are the usual choices. Use the rectifier your amp's tube chart or schematic calls for, since types differ in voltage drop and current rating.\u003c\/p\u003e\n\u003ch2\u003eMatched pairs and quads\u003c\/h2\u003e\n\u003cp\u003ePush-pull output stages run two or four power tubes, and a matched set helps them share the load evenly. Many of our power and preamp tubes are offered as matched pairs and matched quads. Check the options on each listing.\u003c\/p\u003e\n\u003ch2\u003eWhich tube do I need?\u003c\/h2\u003e\n\u003cp\u003eReplace a tube with the same designation printed on the tube or listed in your amp's manual. Fixed-bias amps should have the bias checked after new power tubes go in. If you're not sure how, have a qualified technician do it.\u003c\/p\u003e\n\u003cp\u003eLooking for radio or TV tubes? Browse our \u003ca href=\"\/collections\/vacuum-tubes-guitar-amp-tube-antique-radio-tubes-old-tubes\"\u003efull vacuum tube collection\u003c\/a\u003e or shop \u003ca href=\"\/collections\/amp-parts\"\u003eguitar amplifier parts\u003c\/a\u003e. Need help finding the right tube? Email \u003ca href=\"mailto:sales@bigriverhardware.com\"\u003esales@bigriverhardware.com\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"2a3-tube","title":"2A3 Vacuum Tube – Directly Heated Power Triode for SET Hi-Fi Amps (RCA \u0026 More)","description":"\u003cp\u003eThe 2A3 is a directly heated power triode and one of the classic output tubes for single-ended triode (SET) hi-fi amplifiers. This listing includes RCA dual-plate 2A3s in new original boxes and used tested-good condition, plus other USA brands. Pick yours from the options.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Directly heated power triode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e 4-pin (UX4)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilament:\u003c\/strong\u003e 2.5V, 2.5A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Output stage in single-ended and push-pull triode hi-fi amplifiers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eNote: the \"Unspecified Brand - Condition Not Verified\" option is sold as found and has not been tested.\u003c\/p\u003e\u003cp\u003eIncludes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand? Contact us. We can often source specific brands (20% premium).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Unspecified Brand - Condition Not Verified","offer_id":44928562921778,"sku":"2A3","price":150.0,"currency_code":"USD","in_stock":true},{"title":"RCA Dual Plate Used Tested Good Gray Plate","offer_id":51461581701426,"sku":"2A3","price":89.0,"currency_code":"USD","in_stock":true},{"title":"RCA Dual Plate Used Tested Good Black Plate","offer_id":51461581734194,"sku":"2A3","price":99.0,"currency_code":"USD","in_stock":true},{"title":"2A3 USA Other Brands New Original Box","offer_id":51461581766962,"sku":"2A3","price":129.0,"currency_code":"USD","in_stock":true},{"title":"RCA Dual Plate New Original Box Gray Plate","offer_id":51461581799730,"sku":"2A3","price":159.0,"currency_code":"USD","in_stock":true},{"title":"RCA Dual Plate New Original Box Black Plate","offer_id":51461581832498,"sku":"2A3","price":199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_a615ba15-21f8-4d26-ba10-65089a2246c2.jpg?v=1774229158"},{"product_id":"5ar4-tube","title":"5AR4 \/ GZ34 Vacuum Tube – Full-Wave Rectifier for Guitar Amp \u0026amp; Hi-Fi Power Supplies","description":"\u003cp\u003eThe 5AR4 (GZ34) is a full-wave rectifier tube with an indirectly-heated cathode, giving amps a gentler, tube-friendly power-up compared to solid-state rectification.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Full-wave rectifier\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 5V AC, 1.9A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Power supply rectification in guitar amps and hi-fi gear where a slow, soft voltage rise is desirable\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eGZ34 equivalent — interchangeable in circuits calling for either designation.\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928589332786,"sku":"5AR4","price":48.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_b667e302-3ae8-4a15-8a8b-0ff7563d5047.jpg?v=1774228396"},{"product_id":"5au4-tube","title":"5AU4 Rectifier Tube – High-Current Full-Wave Rectifier","description":"\u003cp\u003eThe 5AU4 is a directly heated full-wave rectifier with a high current rating. It was used in vintage television sets and larger tube power supplies, and some builders use it where a 5U4-style rectifier needs more current headroom. Check your equipment's tube chart before substituting.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Full-wave rectifier (directly heated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilament:\u003c\/strong\u003e 5V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e High-current power supply rectification in vintage TVs, amplifiers and test gear\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928589562162,"sku":"5AU4","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_d8cdec75-db5b-4b6c-9182-9ad661160df9.jpg?v=1774228396"},{"product_id":"5u4g-tube","title":"5U4G Rectifier Tube – Full-Wave Rectifier for Tube Amps \u0026 Vintage Radios","description":"\u003cp\u003eThe 5U4G is a directly-heated full-wave rectifier tube — it converts an amp or radio's AC power to DC for the rest of the circuit, and its slower turn-on and voltage \"sag\" under load are prized by tube-amp players for a feel that solid-state rectification doesn't reproduce.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Full-wave rectifier (directly heated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater\/filament:\u003c\/strong\u003e 5V AC, 3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Power supply rectifier stage in tube guitar amps and vintage tube radios\/hi-fi gear built around a 5U4-family rectifier\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Looking for a specific brand, or want tested-used stock at a discount? Contact us — we can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928597688626,"sku":"5U4G","price":42.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_67846936-eac0-40b3-b5b7-4a371fef16aa.jpg?v=1774228323"},{"product_id":"5u4gb-tube","title":"5U4GB Rectifier Tube – High-Current Full-Wave Rectifier for Tube Amps","description":"\u003cp\u003eThe 5U4GB is a higher-current-rated version of the 5U4G full-wave rectifier tube — same pinout and voltage rating, built to handle more current, and a safe drop-in upgrade anywhere a 5U4G or 5U4 is called for.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Full-wave rectifier (directly heated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater\/filament:\u003c\/strong\u003e 5V AC, 3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Power supply rectifier stage in tube guitar amps and vintage tube radios\/hi-fi gear; higher current headroom than standard 5U4G\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Looking for a specific brand, or want tested-used stock at a discount? Contact us — we can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928597721394,"sku":"5U4GB","price":28.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_a4028e6f-85f5-4926-94c2-63ab102617f6.jpg?v=1774228323"},{"product_id":"5v4g-tube","title":"5V4G Rectifier Tube – ST-Glass Full-Wave Rectifier for Vintage Amps \u0026 Hi-Fi","description":"\u003cp\u003eThe 5V4G is an indirectly heated full-wave rectifier in the earlier ST-shape glass bottle. It gives a lower voltage drop than a 5Y3 or 5U4, which is why it appears in many vintage hi-fi amplifiers and preamps.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Full-wave rectifier (indirectly heated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 5V AC, 2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Power supply rectifier in vintage hi-fi amps, preamps and guitar amps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eEquivalent to the 5V4GA and GZ32. Includes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928597950770,"sku":"5V4G","price":26.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_2a1bd570-723f-4835-9799-8defeb1ce2dd.jpg?v=1774228323"},{"product_id":"5v4ga-tube","title":"5V4GA Rectifier Tube – Full-Wave Rectifier (GZ32 Equivalent) for Tube Amps","description":"\u003cp\u003eThe 5V4GA is an indirectly heated full-wave rectifier, the later tubular-glass version of the 5V4G. Its lower voltage drop and slower warm-up compared with a 5Y3 or 5U4 make it a common choice in hi-fi amplifiers and some guitar amps.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Full-wave rectifier (indirectly heated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 5V AC, 2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Power supply rectifier in hi-fi amps, preamps and guitar amps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eEquivalent to the 5V4G and GZ32. Includes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928597983538,"sku":"5V4GA","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_f7739837-c8c5-4f8e-b838-cf18d41d9298.jpg?v=1774228323"},{"product_id":"5y3g-tube","title":"5Y3G Rectifier Tube – ST-Glass Full-Wave Rectifier for Vintage Amps \u0026 Radios","description":"\u003cp\u003eThe 5Y3G is the earlier ST-shape glass version of the 5Y3 full-wave rectifier, with the same pinout and ratings as the 5Y3GT. It suits restorations where the original rounded bottle matters.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Full-wave rectifier (directly heated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilament:\u003c\/strong\u003e 5V AC, 2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Power supply rectifier in 1940s and 1950s radios, phonographs and small guitar amps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928598212914,"sku":"5Y3G","price":23.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_542de3d3-cd6e-4757-8a67-c23213a5f723.jpg?v=1774229357"},{"product_id":"5y3gt-tube","title":"5Y3GT Rectifier Tube – Full-Wave Rectifier for Guitar Amps \u0026 Tube Radios","description":"\u003cp\u003eThe 5Y3GT is a directly heated full-wave rectifier tube. It converts AC to DC in the power supply of lower-power guitar amps, vintage tube radios and phonographs, and its voltage sag under load is part of the feel of many small vintage amps.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Full-wave rectifier (directly heated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilament:\u003c\/strong\u003e 5V AC, 2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Power supply rectifier in small guitar amps, tube radios and record players\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928598245682,"sku":"5Y3GT","price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_53f0b0af-5794-4e2b-a084-8f1d2d94d596.jpg?v=1774229357"},{"product_id":"5y3wgt-tube","title":"5Y3WGT Rectifier Tube – Ruggedized 5Y3GT Full-Wave Rectifier","description":"\u003cp\u003eThe 5Y3WGT is the ruggedized military-grade version of the 5Y3GT full-wave rectifier. Same pinout and ratings, built for tougher service, and a drop-in for sockets that call for a 5Y3GT or 5Y3G.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Full-wave rectifier (directly heated)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilament:\u003c\/strong\u003e 5V AC, 2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Power supply rectifier in guitar amps, tube radios and test equipment built around the 5Y3\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928598311218,"sku":"5Y3WGT","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_442e52f9-01d6-4866-a488-4bd0d100cc58.jpg?v=1774229357"},{"product_id":"6bq5-el84-tube","title":"EL84 \/ 6BQ5 Vacuum Tube – Power Pentode for Low-Wattage Guitar \u0026amp; Hi-Fi Amps","description":"\u003cp\u003eThe EL84 (6BQ5) is a compact power pentode built for lower-wattage output stages with a bright, chimey breakup character.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Power pentode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e B9A \/ Noval 9-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.76A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Output stage in Vox AC15\/AC30-style guitar amps and compact hi-fi amplifiers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e6BQ5 equivalent.\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928619315506,"sku":"6BQ5","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_1580e2b8-3771-4825-b23d-1da17b97faaf.jpg?v=1774228735"},{"product_id":"el34-tube","title":"EL34 Vacuum Tube (NOS 6CA7 Equivalent) – Guitar Amp \u0026amp; Hi-Fi Output Tube","description":"\u003cp\u003eThe EL34 (equivalent to 6CA7) is a power pentode built for push-pull output stages that need British-voiced grind and headroom. This listing is NOS (new-old-stock) 6CA7 stock.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Power pentode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e B9A \/ Noval 9-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 1.5A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Output stage in Marshall\/Hiwatt-style guitar amps and hi-fi integrated amplifiers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e NOS (new old stock)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDirect equivalent to 6CA7 — drop-in for amps designed around either designation.\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928626065714,"sku":"6CA7","price":49.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_e8ae9ee1-fd7e-41a2-a4b2-7dedb4e004ae.jpg?v=1774228952"},{"product_id":"6dj8","title":"6DJ8 \/ ECC88 Vacuum Tube – Low-Noise Dual Triode for Hi-Fi Preamps (New \u0026 Used)","description":"\u003cp\u003eThe 6DJ8 (ECC88) is a low-noise frame-grid dual triode used in hi-fi preamps, phono stages, headphone amps and tube output stages of CD players and DACs. This listing offers several brands, including Amperex Holland, Toshiba and Matsushita Japan, GE, Sylvania and Raytheon, in new and used condition. Pick yours from the options.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Low-noise dual triode (frame grid)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e B9A \/ Noval 9-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.365A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Hi-fi preamp, phono and line stages; headphone amps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 6922 \/ E88CC is the premium long-life version of the same tube family.\u003c\/p\u003e\u003cp\u003eIncludes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"USA GE Sylvania New","offer_id":44928637665586,"sku":"6DJ8","price":18.0,"currency_code":"USD","in_stock":true},{"title":"Japan-Made Toshiba Matsushita New","offer_id":51461581898034,"sku":"6DJ8","price":18.0,"currency_code":"USD","in_stock":true},{"title":"Japan-Made Toshiba Matsushita Used","offer_id":51461581930802,"sku":"6DJ8","price":10.0,"currency_code":"USD","in_stock":true},{"title":"Raytheon USA New","offer_id":51461581963570,"sku":"6DJ8","price":24.0,"currency_code":"USD","in_stock":true},{"title":"USA GE Sylvania Used","offer_id":51461581996338,"sku":"6DJ8","price":10.0,"currency_code":"USD","in_stock":true},{"title":"Amperex Holland Orange World Logo New","offer_id":51461582029106,"sku":"6DJ8","price":89.0,"currency_code":"USD","in_stock":true},{"title":"Amperex Holland Orange World Logo Used","offer_id":51461582061874,"sku":"6DJ8","price":39.0,"currency_code":"USD","in_stock":true},{"title":"Amperex Holland Bugleboy New","offer_id":51461582094642,"sku":"6DJ8","price":119.0,"currency_code":"USD","in_stock":true},{"title":"Amperex Holland Bugleboy Used","offer_id":51461582127410,"sku":"6DJ8","price":59.0,"currency_code":"USD","in_stock":true},{"title":"Other Holland Branding by Amperex New","offer_id":51461582160178,"sku":"6DJ8","price":89.0,"currency_code":"USD","in_stock":true},{"title":"Mullard UK New","offer_id":51461582192946,"sku":"6DJ8","price":99.0,"currency_code":"USD","in_stock":true},{"title":"Mullard UK Used","offer_id":51461582225714,"sku":"6DJ8","price":49.0,"currency_code":"USD","in_stock":true},{"title":"Siemens Halske Germany New","offer_id":51461582258482,"sku":"6DJ8","price":119.0,"currency_code":"USD","in_stock":true},{"title":"Telefunken Germany Diamond Base New","offer_id":51461582291250,"sku":"6DJ8","price":149.0,"currency_code":"USD","in_stock":true},{"title":"Telefunken Germany Diamond Base Used","offer_id":51461582324018,"sku":"6DJ8","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/files\/6dj8-miniature-vacuum-tube-white-background_8a4029c2-5541-4b93-9639-67278011b668.png?v=1783779811"},{"product_id":"6l6-tube","title":"6L6 Vacuum Tube – Metal Beam Power Output Tube (RCA, New \u0026 Tested Used)","description":"\u003cp\u003eThe 6L6 is the original beam power tetrode in this output-tube family, in its classic metal envelope — the direct predecessor to the glass 6L6G and the higher-headroom 6L6GC. Same octal pinout as the rest of the 6L6 family.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Beam power tetrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.9A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Output stage in Fender-style guitar amps and American-voiced hi-fi amplifiers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in several original-box and tested-used options, including a low-loss Micanol-base RCA 6L6Y — see variants. Includes: 1 tube per unit ordered. Looking for a specific brand, or want tested-used stock at a discount? Contact us — we can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e","brand":"BB","offers":[{"title":"RCA New Original Box","offer_id":44928672137522,"sku":"6L6","price":30.0,"currency_code":"USD","in_stock":true},{"title":"Various USA Brands New Original Box","offer_id":51461580882226,"sku":"6L6","price":25.0,"currency_code":"USD","in_stock":true},{"title":"6L6Y RCA Low-Loss Micanol Base New","offer_id":51461580914994,"sku":"6L6","price":35.0,"currency_code":"USD","in_stock":true},{"title":"Various USA Brands Used Tested Good","offer_id":51461580947762,"sku":"6L6","price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_dbae46ba-4a9c-4c7e-9f09-340cd9014397.jpg?v=1774229118"},{"product_id":"6l6g-tube","title":"6L6G Vacuum Tube – ST-Glass Beam Power Output Tube for Vintage Amps","description":"\u003cp\u003eThe 6L6G is the glass ST-envelope version of the 6L6 beam power tetrode — same octal pinout and output-stage role as 6L6\/6L6GC, in the rounder glass shape common on 1940s–50s amps and radios.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Beam power tetrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.9A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Output stage in Fender-style guitar amps and American-voiced hi-fi amplifiers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Looking for a specific brand, or want tested-used stock at a discount? Contact us — we can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928672203058,"sku":"6L6G","price":56.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_a63f0dfa-e502-4665-bbe8-866af2c381c3.jpg?v=1774229118"},{"product_id":"6l6gc-tube","title":"6L6GC Vacuum Tube – Octal Beam Tetrode Output Tube for American-Voiced Guitar Amps","description":"\u003cp\u003eThe 6L6GC is an octal beam power tetrode and the classic American output tube — the sound behind Fender's clean, headroom-forward voicing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Beam power tetrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.9A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Output stage in Fender-style guitar amps and American-voiced hi-fi amplifiers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDirect output-stage swap for amps built around 5881\/6L6GB designations.\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928672235826,"sku":"6L6GC","price":60.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_c0e6f280-9c51-4c5b-87a0-1595774b06b6.jpg?v=1774229118"},{"product_id":"6sl7-tube","title":"6SL7 Vacuum Tube – Octal High-Gain Dual Triode for Hi-Fi Preamp \u0026 Driver Stages","description":"\u003cp\u003eThe 6SL7 is an octal high-mu dual triode, the higher-gain partner to the 6SN7. It shows up in preamp, driver and phase-inverter stages of vintage hi-fi amplifiers and in many tube headphone amps.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e High-mu dual triode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.3A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Preamp, driver and phase-inverter stages in hi-fi amps and headphone amps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928682426674,"sku":"6SL7","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_e4e343a5-4f1f-4b57-8227-079a688fc880.jpg?v=1774228690"},{"product_id":"6sn7-vacuum-tube-upgrade-warm-detailed-hi-fi-tone","title":"6SN7 Vacuum Tube – Octal Dual-Triode for Hi-Fi Preamp \u0026 Headphone Amps","description":"\u003cp\u003eThe 6SN7 is an octal dual-triode prized for its large glass envelope, low microphonics, and warm, spacious tone in gain and phase-inverter stages.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Dual triode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.6A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Preamp gain and phase-inverter stages in hi-fi amplifiers, headphone amps, and DACs\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eA long-standing favorite for tube-rolling hi-fi builders looking for a bigger, rounder sound than 12AX7-family triodes.\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928682459442,"sku":"6SN7","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/files\/BookReaderImages_0990ba7c-38b7-4d05-bdb1-670f05c8ba5e.jpg?v=1784599456"},{"product_id":"6v6-tube","title":"6V6 Vacuum Tube – Beam Power Output Tube for Guitar Amps \u0026 Radios (New \u0026 Tested Used)","description":"\u003cp\u003eThe 6V6 is a beam power tetrode in the same electrical family as the 6V6GT and 6V6G — same pinout and ratings, just an earlier envelope style. Functionally interchangeable with 6V6GT\/6V6G in amps and radios built around any of the three.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Beam power tetrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.45A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Output stage in low-wattage guitar amps (Fender Champ\/Princeton-style) and vintage radio output stages\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable new or tested-used — see variant options below. Includes: 1 tube. Looking for a specific brand, or want tested-used stock at a discount? Contact us — we can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e","brand":"BB","offers":[{"title":"New","offer_id":44973977567538,"sku":"6V6","price":22.0,"currency_code":"USD","in_stock":true},{"title":"Used","offer_id":44973977600306,"sku":"6V6 - used","price":16.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_7e65f969-cb9b-431c-b172-964eff93283a.jpg?v=1774228690"},{"product_id":"6v6g-tube","title":"6V6G Vacuum Tube – ST-Glass Beam Power Output Tube for Amps \u0026 Radios","description":"\u003cp\u003eThe 6V6G is the ST-bulb glass-envelope version of the 6V6 beam power tetrode — same pinout and ratings as 6V6\/6V6GT, in the rounder classic-radio-era glass shape. Functionally interchangeable with both in amps and radios built around any of the three.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Beam power tetrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.45A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Output stage in low-wattage guitar amps and vintage radio output stages\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Looking for a specific brand, or want tested-used stock at a discount? Contact us — we can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928685179186,"sku":"6V6G","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_152064cc-b5b8-498d-9a32-f463dd504538.jpg?v=1774228691"},{"product_id":"6v6gt-tube","title":"6V6GT Vacuum Tube – Octal Beam Tetrode Output Tube for Low-Wattage Amps","description":"\u003cp\u003eThe 6V6GT is an octal beam power tetrode built for low-wattage output stages, the tube behind the compact American amp sound.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Beam power tetrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.45A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Output stage in low-wattage amps (Fender Champ\/Princeton-style) and vintage radio output stages\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eGlass-tube (GT) construction for standard octal sockets.\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928685211954,"sku":"6V6GT","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_f8195f62-c8dc-4afc-acef-a863755a60e0.jpg?v=1774228690"},{"product_id":"12at7-tube","title":"12AT7 \/ ECC81 Vacuum Tube – Phase Inverter \u0026 Reverb-Driver Tube for Guitar Amps","description":"\u003cp\u003eThe 12AT7 (ECC81) is a medium-mu dual triode with lower gain and higher current capacity than the 12AX7, making it the standard choice for phase-inverter and reverb-driver duty.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Medium-mu dual triode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e B9A \/ Noval 9-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 12.6V AC (0.15A) or 6.3V AC (0.3A parallel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Phase inverter and spring-reverb driver stages in guitar amps; oscillator\/mixer stages in tuners\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eECC81 equivalent.\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928711917874,"sku":"12AT7","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/files\/BookReaderImages_2d501146-6c89-464c-98df-c433f898ec3d.jpg?v=1784599455"},{"product_id":"12au7-tube","title":"12AU7 \/ ECC82 Vacuum Tube – Dual Triode for Phase Inverter \u0026amp; Headphone Amp Stages","description":"\u003cp\u003eThe 12AU7 (ECC82) is a medium-mu dual triode used where a preamp stage needs headroom and current capacity rather than raw gain.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Medium-mu dual triode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e B9A \/ Noval 9-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 12.6V AC (0.15A) or 6.3V AC (0.3A parallel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Phase-inverter and line-driver stages in guitar amps; headphone amp output stages\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eECC82 equivalent.\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928712016178,"sku":"12AU7","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_cd83b77a-c4c5-4de2-951d-9ee3e8cbc298.jpg?v=1774229396"},{"product_id":"12ax7-ecc83-tubes","title":"12AX7 \/ ECC83 Vacuum Tube – High-Gain Preamp Tube for Guitar Amps \u0026 Hi-Fi","description":"\u003cp\u003eThe 12AX7, also designated ECC83, is a high-gain dual-triode preamp tube used in guitar amplifiers and hi-fi equipment. Check your equipment documentation for the specified tube designation before ordering.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e High-mu dual triode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e B9A \/ Noval 9-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 12.6V AC (0.15A) or 6.3V AC (0.3A wired parallel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Preamp gain stages in Fender\/Marshall-style guitar amps and hi-fi\/phono preamps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eECC83 equivalent — interchangeable in amps calling for either designation.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/vacuum-tubes-guitar-amp-tube-antique-radio-tubes-old-tubes\"\u003eBrowse vacuum tubes for guitar amps and radios\u003c\/a\u003e.\u003c\/p\u003e","brand":"Big River Hardware","offers":[{"title":"Default Title","offer_id":44928713818418,"sku":"12AX7","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/files\/BookReaderImages.jpg?v=1784599443"},{"product_id":"5751-tube","title":"5751 Vacuum Tube – Reduced-Gain Preamp Triode for Guitar Amp Headroom","description":"\u003cp\u003eThe 5751 is a ruggedized dual triode built to the same footprint as the 12AX7 but with roughly 70% of its gain, giving a cleaner, higher-headroom preamp stage without a circuit change.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e High-mu dual triode (reduced-gain)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e B9A \/ Noval 9-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 12.6V AC (0.15A) or 6.3V AC (0.3A parallel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Drop-in 12AX7 preamp-socket replacement in guitar amps for players wanting later breakup and lower noise\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eOriginally a military\/industrial spec (JAN) tube built for long service life.\u003c\/p\u003e","brand":"Big River Hardware","offers":[{"title":"Default Title","offer_id":44928849969458,"sku":"5751","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_b0a12528-0cdd-4966-bec8-64a0f5d2be99.jpg?v=1774228672"},{"product_id":"5881-tube","title":"5881 Vacuum Tube – Ruggedized 6L6-Family Output Tube for Guitar Amps","description":"\u003cp\u003eThe 5881 is a ruggedized member of the 6L6 beam power tube family, used in the output stage of American-voiced guitar amps and hi-fi amplifiers. It fits 6L6 sockets; check your amp's bias after installing new power tubes.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Beam power tetrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.9A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Push-pull output stage in Fender-style guitar amps and vintage hi-fi amps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928851018034,"sku":"5881","price":56.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_ce362de8-90b1-42f8-b9b2-4d2f030aaba0.jpg?v=1774229376"},{"product_id":"6267-ef86-tube","title":"EF86 \/ 6267 Vacuum Tube – Low-Noise Pentode for Guitar \u0026 Hi-Fi Preamps","description":"\u003cp\u003eThe EF86 (6267) is a low-noise sharp-cutoff pentode used as a high-gain preamp tube. It is the input tube in early Vox AC15-style amps and many hi-fi and microphone preamps. It is not interchangeable with the 12AX7.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Sharp-cutoff pentode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e B9A \/ Noval 9-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.2A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Preamp input stage in guitar amps, hi-fi preamps and microphone preamps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928867893554,"sku":"6267\/EF86","price":38.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_e8021320-9b48-4acc-9d5b-1c9c6bdf76b6.jpg?v=1774229377"},{"product_id":"7025-tube","title":"7025 Vacuum Tube – Low-Noise 12AX7 Preamp Tube for Guitar Amps","description":"\u003cp\u003eThe 7025 is a low-noise, low-microphonic version of the 12AX7 high-gain dual triode, built for the first gain stage of an amp where hum and hiss are most noticeable. It drops into any 12AX7 \/ ECC83 socket.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e High-mu dual triode (low-noise 12AX7)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e B9A \/ Noval 9-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 12.6V AC (0.15A) or 6.3V AC (0.3A parallel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e First preamp stage in guitar amps and phono preamps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928874873138,"sku":"7025","price":36.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_ea6265c6-83dc-4d96-a165-33a601a02910.jpg?v=1774229164"},{"product_id":"7591-tube","title":"7591 Vacuum Tube – Octal Beam Power Output Tube for Vintage Hi-Fi Amps","description":"\u003cp\u003eThe 7591 is an octal beam power output tube found in many 1960s American hi-fi amplifiers and receivers and in some vintage Ampeg guitar amps. Replace it with a 7591 or 7591A; it is not pin-compatible with the 6L6 or EL34 without an adapter.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Beam power output tube\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC, 0.8A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Push-pull output stage in vintage hi-fi amps and receivers\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIncludes: 1 tube. Used tubes are tested before they ship. New and NOS tubes are sold in their original condition and are not always tested. Looking for a specific brand, or want tested-used stock at a discount? Contact us. We can often source specific brands (20% premium) or tested-used tubes (20% off).\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"BB","offers":[{"title":"Default Title","offer_id":44928876740914,"sku":"7591","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/products\/W_I6gb5f68opfSNld2pmCS6JSOxAvREJaLj4r_DW-qK_BYeIwqhOX2TZNGjVnNp_6aCJ7OfaruVSSA_s640-nd-v1_7cba953a-d557-43e3-abe9-9cfe6cffaa7d.jpg?v=1774229165"},{"product_id":"12ax7-tubes","title":"PSVANE 12AX7 \u0026 12AU7 Vacuum Tubes – Current-Production Preamp Tube Set","description":"\u003cp\u003eCurrent-production PSVANE preamp tubes covering both the 12AX7 (high-gain) and 12AU7 (medium-gain) dual-triode types, built fresh for players and hi-fi listeners who want matched, consistent stock.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube types:\u003c\/strong\u003e 12AX7-S (high-mu dual triode) and 12AU7-S (medium-mu dual triode)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e B9A \/ Noval 9-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 12.6V AC (0.15A) or 6.3V AC (0.3A parallel)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e 12AX7-S for guitar amp\/phono preamp gain stages; 12AU7-S for phase-inverter and line-driver stages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e Current production (new manufacture)\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eSold as single tubes, matched pairs, or matched quads per type.\u003c\/p\u003e","brand":"Big River Hardware","offers":[{"title":"12AX7-S \/ 1PCS","offer_id":44929405026610,"sku":"3256804781607934-12AX7-S-1PCS","price":67.99,"currency_code":"USD","in_stock":true},{"title":"12AU7-S \/ 1PCS","offer_id":44929405059378,"sku":"3256804781607934-12AU7-S-1PCS","price":61.99,"currency_code":"USD","in_stock":true},{"title":"12AX7-S \/ 2pcs Matched Pair","offer_id":44929405092146,"sku":"3256804781607934-12AX7-S-2pcs Matched Pair","price":129.99,"currency_code":"USD","in_stock":true},{"title":"12AU7-S \/ 2pcs Matched Pair","offer_id":44929405124914,"sku":"3256804781607934-12AU7-S-2pcs Matched Pair","price":116.99,"currency_code":"USD","in_stock":true},{"title":"12AX7-S \/ 4pcs Matched Quad","offer_id":44929405157682,"sku":"3256804781607934-12AX7-S-4pcs Matched Quad","price":252.99,"currency_code":"USD","in_stock":true},{"title":"12AU7-S \/ 4pcs Matched Quad","offer_id":44929405190450,"sku":"3256804781607934-12AU7-S-4pcs Matched Quad","price":226.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/files\/d29f6f59a1.jpg?v=1784291193"},{"product_id":"6l6-tubes","title":"6L6G Vacuum Tubes – New-Production Output Tubes, Singles, Pairs \u0026 Quads","description":"\u003cp\u003eNew current-production 6L6G beam power output tubes for guitar amps and hi-fi amplifiers, sold as single tubes, pairs, sets of three or quads. Choose the quantity from the options.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTube type:\u003c\/strong\u003e Beam power tetrode\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBase:\u003c\/strong\u003e Octal 8-pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeater:\u003c\/strong\u003e 6.3V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTypical use:\u003c\/strong\u003e Push-pull output stage in Fender-style guitar amps and American-voiced hi-fi amps\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese are new tubes shipped directly from our supplier, so they are not individually tested by us. Check your amp's bias after installing new power tubes. 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Choose the tube type and quantity from the options.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower triodes:\u003c\/strong\u003e ZX-300B, ZX-2A3, ZX-845, ZX-211, ZX-805 for single-ended and push-pull triode amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower tetrode:\u003c\/strong\u003e ZX-KT88 for high-power push-pull output stages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDriver and preamp:\u003c\/strong\u003e ZX-6SN7, ZX-101D\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRectifier:\u003c\/strong\u003e ZX-274B\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe 845, 211 and 805 are high-voltage transmitting-style triodes. Use them only in amplifiers designed for them. These are new tubes shipped directly from our supplier, so they are not individually tested by us. 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ZX-KT88 \/ 2pcs Matched","offer_id":51439123792178,"sku":"1005011677587566-LINLAI ZX-KT88-2pcs Matched","price":552.99,"currency_code":"USD","in_stock":true},{"title":"LINLAI ZX-101D \/ 1pcs","offer_id":51439123824946,"sku":"1005011677587566-LINLAI ZX-101D-1pcs","price":283.99,"currency_code":"USD","in_stock":true},{"title":"LINLAI ZX-274B \/ 2pcs Matched","offer_id":51439123857714,"sku":"1005011677587566-LINLAI ZX-274B-2pcs Matched","price":721.99,"currency_code":"USD","in_stock":true},{"title":"LINLAI ZX-101D \/ 2pcs Matched","offer_id":51439123890482,"sku":"1005011677587566-LINLAI ZX-101D-2pcs Matched","price":552.99,"currency_code":"USD","in_stock":true},{"title":"LINLAI ZX-101D \/ 4pcs Matched","offer_id":51439123923250,"sku":"1005011677587566-LINLAI ZX-101D-4pcs Matched","price":1096.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/files\/S512d4bea8ca446febcdeff23113e91d1H.webp?v=1783469043"},{"product_id":"linlai-zx-300b-zx-2a3-zx-274b-zx-6sn7-zx-101d-zx-kt88-vacuum-tube-valve-upgrade-300b-2a3-274b-6sn7-101d-kt88-tube-amp-kit-diy","title":"LINLAI ZX Series Tubes – 300B, KT88, 2A3, 6SN7, 101D \u0026 274B Singles","description":"\u003cp\u003eSingle LINLAI ZX series vacuum tubes for upgrading or rebuilding hi-fi tube amplifiers. Choose the tube type from the options.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eZX-300B and ZX-2A3:\u003c\/strong\u003e Directly heated power triodes for single-ended triode amps\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZX-KT88:\u003c\/strong\u003e Beam power tetrode for high-power output stages\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZX-6SN7 and ZX-101D:\u003c\/strong\u003e Driver and preamp triodes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eZX-274B:\u003c\/strong\u003e Full-wave rectifier\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese are new tubes shipped directly from our supplier, so they are not individually tested by us. Need a matched pair or quad? See our \u003ca href=\"\/products\/linlai-6sn7-300b-kt88-2a3-274b-101d-805-211-845-electron-vacuum-tube-zx-series-6n8p-cv181-6550-2a3b-2a3c-5u4g-audio-valve-tubes\"\u003eLINLAI ZX matched sets\u003c\/a\u003e. Allow up to 30 days for delivery.\u003c\/p\u003e\u003cp\u003e\u003ca href=\"\/collections\/amplifier-vacuum-tubes\"\u003eShop all amplifier vacuum tubes\u003c\/a\u003e\u003c\/p\u003e","brand":"Big River Hardware","offers":[{"title":"1PCS 300B","offer_id":51439124087090,"sku":"1005008947208128-1PCS 300B","price":324.99,"currency_code":"USD","in_stock":true},{"title":"1PCS KT88","offer_id":51439124119858,"sku":"1005008947208128-1PCS KT88","price":223.99,"currency_code":"USD","in_stock":true},{"title":"1PCS 274B","offer_id":51439124152626,"sku":"1005008947208128-1PCS 274B","price":266.99,"currency_code":"USD","in_stock":true},{"title":"1PCS 101D","offer_id":51439124185394,"sku":"1005008947208128-1PCS 101D","price":223.99,"currency_code":"USD","in_stock":true},{"title":"1PCS 6SN7","offer_id":51439124218162,"sku":"1005008947208128-1PCS 6SN7","price":216.99,"currency_code":"USD","in_stock":true},{"title":"1PCS 2A3","offer_id":51439124250930,"sku":"1005008947208128-1PCS 2A3","price":295.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0250\/5097\/2245\/files\/Sd337c1b55ab6471fb3cc0ec546ae19f6N.webp?v=1783469044"}],"url":"https:\/\/bigriverhardware.com\/collections\/amplifier-vacuum-tubes.oembed?page=2","provider":"Big River Hardware","version":"1.0","type":"link"}