DIY Electronic Kit, Practice Soldering Kits Ultrasonic Suspension Standing Wave Controller, 40KHz Levitation Science PCB Solder Practice Project, Adjustable Height STEM Educational Gift for DIYers
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【FASCINATING ULTRASONIC LEVITATION SCIENCE PROJECT】Assemble this kit and watch lightweight objects like foam balls float in mid-air — held up purely by 40KHz ultrasonic standing waves. The finished device measures just 56mm×50mm×50mm, powered by DC 9–12V with ultra-low current draw of only 36–45mA. A perfect gift for science lovers, makers, and curious minds who want to see physics in action.
【HOW STANDING WAVES DEFY GRAVITY】Two ultrasonic transmitters face each other at a precise resonator distance, continuously emitting 40KHz waves that superimpose into a stable standing wave field. The wave pressure overcomes gravity, suspending lightweight objects between the two transducers. Freely adjust the copper pillar height (46mm base + 5mm fine-tuning) to dial in the perfect levitation node — pure physics at your fingertips.
【12-STEP SOLDERING PRACTICE KIT】This double-layer PCB design keeps the circuit simple and beginner-friendly, with clearly labeled silkscreen for every component position. Solder the TC4427 driver chip, AMS-1117 voltage regulator, resistors, capacitors, LEDs, electrolytic capacitors, DC power jack, and ultrasonic sensors across 12 guided steps. Detailed illustrated English instructions make every step foolproof.
【GREAT GIFT FOR STUDENTS & ELECTRONICS HOBBYISTS】More than a soldering kit — it's a desktop physics experiment that demonstrates standing wave acoustics in real time. Perfect for STEM classrooms, science fair projects, college electronics labs, and as a unique birthday or holiday gift for anyone who loves hands-on science and DIY electronics.
【GEEKLJT QUALITY GUARANTEE】We stand behind every kit with responsive after-sales support. If any component is missing or damaged upon arrival, contact us and we will make it right. Includes all PCB boards, components, copper pillars, and screws — tools and power supply not included.
