{"type":"firestarter.listing","listing":{"id":"lst_QdV2FbOe","product_name":"RCA 6F8G Vacuum Tube","category":"Vacuum Tube","description":"\n\n\n\n\n\n\n\nThe RCA 6F8G is a New Old Stock American-made twin triode vacuum tube produced for use in early radio, communications, and audio equipment. Introduced during the formative years of octal tube development, the 6F8G reflects RCA’s efforts to provide compact, high-gain dual-triode performance for low-level amplification and signal-processing applications. \n\n\n\n\n\n\n\n\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: RCA 6F8G\n\nGlass Type: Black Coated \n\nBase Type: Black Base\n\nMica Type: Round\n\nMade in: USA\n\nBox Type: NOS in New White Box\n\nTested on: Amplitrex AT1000 Advanced Digital Tube Tester\n","images":["https://cdn.shopify.com/s/files/1/0225/2721/3642/files/RCA6F8G_1.jpg?v=1783958159","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/RCA6F8G_4.jpg?v=1783958159","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/RCA6F8G_2.jpg?v=1783958159","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/RCA6F8G_5.jpg?v=1783958159","https://cdn.shopify.com/s/files/1/0225/2721/3642/files/RCA6F8G_3.jpg?v=1783958160"],"price":536,"currency":"USD","in_stock":true,"inventory_qty":59994,"dynamic_pricing":false,"listed_at":"2026-07-14T19:44:25.346Z"},"share_url":"https://firestarter.network/l/lst_QdV2FbOe","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_QdV2FbOe' — this pins the purchase to this exact listing, skipping product search — plus request: 'Buy RCA 6F8G Vacuum Tube' and a budget_max comfortably above $536.00 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."]}}