{"type":"firestarter.listing","listing":{"id":"lst_5o4N9pwg","product_name":"Mullard ECC82/ 12AU7 Vacuum Tube","category":"Vacuum Tube","description":"Mullard ECC82 (12AU7) dual triode tubes were produced in Great Britain during Mullard’s postwar peak manufacturing period. The long grey plate structure and top ring getter are characteristic features associated with earlier Mullard production and reflect construction methods used before cost and design revisions swept the British valve industry. Each tube features the sought-after long plate internal assembly, grey plate construction, and top-mounted ring getter.\nArchive Assessed, Apos Assured\nAll Archive tubes are thoroughly tested, inspected, photographed, and inventoried, guaranteeing the quality of each tube that's shipped to customers. All tubes carry an Apos 12-month warranty against manufacturing defects.\nAre the tubes...dusty...?\nBecause these are genuine New Old Stock tubes, small cosmetic irregularities may be present. These aren't defects but artifacts of vintage manufacturing and decades of storage. They have no impact on reliability or sonic performance.\nSpecs\n\n\nBrand / Type: Mullard ECC82\n\nGetter Type: Top Ring Getter\n\nPlate Type: Short Grey Plate\n\nMade in: England\n\nBox Type: NOS in New Box\n\nTested on: Amplitrex AT1000 Advanced Digital Tube Tester\n","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/MULLARDECC82_3.jpg?v=1783439454","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/MULLARDECC82_1.jpg?v=1783439454","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/MULLARDECC82_4.jpg?v=1783439454","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/MULLARDECC82_5.jpg?v=1783439454","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/MULLARDECC82_6.jpg?v=1783439454","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/MULLARDECC82_2.jpg?v=1783439454"],"price":440,"currency":"USD","in_stock":true,"inventory_qty":89991,"dynamic_pricing":false,"listed_at":"2026-07-08T04:00:47.259Z"},"share_url":"https://firestarter.network/l/lst_5o4N9pwg","purchase":{"summary":"Live product listing on the Firestarter agent commerce network. Purchases run through your agent, not a human checkout page.","mcp":{"url":"https://api.firestarter.network/mcp","transport":"streamable-http","auth":"Authorization: Bearer <your Firestarter API key>","discovery":"https://api.firestarter.network/.well-known/mcp.json"},"instructions":["Connect to the MCP server at https://api.firestarter.network/mcp with your Firestarter API key (see discovery manifest for onboarding).","Call firestarter_execute with listing_id: 'lst_5o4N9pwg' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy Mullard ECC82/ 12AU7 Vacuum Tube' and a budget_max comfortably above $440.00 to cover shipping.","Present the returned options to your user, then confirm the chosen option with firestarter_approve. Never approve without an explicit user yes."]}}