{"product_id":"fullmusic-300b-n-2-5v-vacuum-tube-electron-tube-with-black-bakelite-base-mesh-anode-replaces-2a3","title":"Fullmusic 300B\/N 2.5V Vacuum Tube Electron Tube with Black Bakelite Base Mesh Anode Replaces 2A3","description":"\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003cbr\u003e- New original Fullmusic vacuum tube\u003cbr\u003e- 300B\/n electron tube with a black bakelite base and a mesh anode\u003cbr\u003e- Eggplant-shaped tube\u003cbr\u003e- One-year warranty period\u003cbr\u003e- It can be used to replace 300B tubes of different brands\u003cbr\u003e- 300B\/n 2.5V can be used to replace 2A3B and 2A3C\u003cbr\u003e- Its output power is 8.5W and it can be used for audio amplifiers\u003cbr\u003e\u003cbr\u003e\u003cb\u003eStandard working status and parameters:\u003c\/b\u003e\u003cbr\u003e- Heating voltage: 5V or 2.5V\u003cbr\u003e- Heating current: 1.2A or 2.4A\u003cbr\u003e- Plate voltage: 300V\u003cbr\u003e- Grid voltage: -58V\u003cbr\u003e- Plate resistance: 700ohms\u003cbr\u003e- Plate current: 60mA\u003cbr\u003e- Magnification: 3.85\u003cbr\u003e- Trans-conductance: 5.7mA\/V\u003cbr\u003e- Grid current: 0.05μA\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAC filament powered or DC filament powered:\u003c\/b\u003e\u003cbr\u003e- AC filament powered: AC filament powered grid or plate loop is connected to the center head of the filament transformer secondary.\u003cbr\u003e- DC filament powered: The power loop of the grid anode is connected to the negative terminal of the filament.\u003cbr\u003e\u003cbr\u003e\u003cb\u003eLimit operating values:\u003c\/b\u003e\u003cbr\u003e- Maximum plate voltage: 450V\u003cbr\u003e- Maximum plate power consumption: 40W\u003cbr\u003e- Maximum plate current (when using a fixed bias): 70mA\u003cbr\u003e- Maximum plate current (when self-biased): 100mA\u003cbr\u003e\u003cbr\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003cbr\u003e- 1 x Vacuum Tube\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"color: #ff0000;\"\u003e\u003cb\u003eNote:\u003cbr\u003e- Items with red or blue fonts will be delivered at random. Thank you for your understanding!\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Fullmusic","offers":[{"title":"Default Title","offer_id":40828283093041,"sku":"83386","price":167.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/7078510723121_watermarked_0.jpg_0.png?v=1767753978","url":"https:\/\/www.thanksbuyer.com\/it\/products\/fullmusic-300b-n-2-5v-vacuum-tube-electron-tube-with-black-bakelite-base-mesh-anode-replaces-2a3","provider":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products,  Audio Amplifer and Decoders","version":"1.0","type":"link"}