{"product_id":"diy-mini-tesla-coil-kit-bd243c-wireless-power-solder-practice","title":"DIY Mini Tesla Coil Kit BD243C | Electronics Experiment \u0026 Solder Practice","description":"\u003cp\u003e\u003cstrong\u003eSpark your passion for physics, electromagnetic fields, and soldering with the DIY Mini Tesla Coil Kit BD243C!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCurated and quality-tested by TNNJoy for electronics hobbyists, STEM students, and young engineers (ages 14+), this entry-level DIY kit allows you to assemble a fully functional miniature Tesla coil from scratch. Powered by a high-power BD243C NPN transistor and secondary copper winding coil, this kit demonstrates high-frequency AC wireless power transmission by lighting up neon bulbs and gas discharge tubes right in mid-air!\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eKey Features \u0026amp; Science Highlights:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWireless Power Transmission Demonstration:\u003c\/strong\u003e Generates a high-frequency electromagnetic field that wirelessly illuminates neon bulbs, fluorescent tubes, and gas discharge indicators when brought close to the copper secondary coil.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBD243C High-Power Transistor Core:\u003c\/strong\u003e Driven by an authentic BD243C power transistor with an aluminum heatsink for stable thermal dissipation during continuous operation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFun \u0026amp; Rewarding Soldering Practice:\u003c\/strong\u003e Excellent beginner soldering project featuring clear component labels on a durable FR-4 glass fiber PCB.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Desktop Science Display:\u003c\/strong\u003e A fascinating physical science gadget that serves as a captivating desk ornament and physics classroom demo.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Audio \/ Power Input Options:\u003c\/strong\u003e Includes 3.5mm audio jack terminals allowing high-frequency plasma spark modulation to play subtle music tones.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBoard PCB Size:\u003c\/strong\u003e 4.0 cm x 3.1 cm \/ 1.57 in x 1.22 in\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOperating Voltage:\u003c\/strong\u003e DC 9V – 12V (Standard 12V 1A DC Power Supply Adapter)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePower Output:\u003c\/strong\u003e ~15W\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSKU:\u003c\/strong\u003e ELC-22\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRecommended Age:\u003c\/strong\u003e 14+ (High School Physics, STEM Hobbyist)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAssembly Difficulty:\u003c\/strong\u003e Beginner Soldering (★★2\/5)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat is Inside the Custom Box:\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Pre-wound Secondary Copper Wire Coil\u003c\/li\u003e\n  \u003cli\u003e1 x FR-4 Printed Circuit Board (PCB)\u003c\/li\u003e\n  \u003cli\u003e1 x BD243C NPN Power Transistor \u0026amp; Aluminum Heatsink\u003c\/li\u003e\n  \u003cli\u003e1 x 3.5mm Audio Input Socket Terminal\u003c\/li\u003e\n  \u003cli\u003e1 x LED Status Indicator \u0026amp; Resistor Set\u003c\/li\u003e\n  \u003cli\u003e1 x 5.5mm DC Power Input Jack\u003c\/li\u003e\n  \u003cli\u003e1 x Step-by-Step Assembly Instruction Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eSafety Note: Requires soldering iron for assembly. Produces low-power high-frequency electromagnetic sparks. Do not touch heat sink during long operations. Not suitable for children under 3 years.\u003c\/em\u003e\u003c\/p\u003e","brand":"TNNJoy","offers":[{"title":"Default Title","offer_id":43328265683021,"sku":"ELC-22","price":16.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0605\/1499\/2205\/files\/il_224xN.7561297771_pu0z.jpg?v=1785440056","url":"https:\/\/tnnjoy.com\/products\/diy-mini-tesla-coil-kit-bd243c-wireless-power-solder-practice","provider":"TNNJoy","version":"1.0","type":"link"}