Permanent magnet rotatable armature generator for classroom demonstration and hands on teaching of AC and DC generator principles Key benefits Clear, hands on demonstration of how AC and DC generators are built and operate, suitable for junior physics and elementary natural knowledge teaching. Visible components and simple manual drive let students observe rotor, stator, brushes and magnetic poles while generating voltage. Reliable output at typical hand or low speed rotation to support measurement and experiment activities. Main features and specifications Construction: permanent magnet rotatable armature generator composed of stator, rotor, brushes, base plate and manual mechanism. Magnet assembly: two pieces of barium constant magnetic material; red indicates N pole and blue indicates S pole. Performance: at rotor speed 1200 to 1600 rpm the no load output voltage is not less than 6V, and under load the voltage is not less than 3V at 0.3A. Design supports both AC and DC generator teaching by showing basic structure and working principle. Portable tabletop size with manual drive for controlled demonstration and student interaction. Why this product solves teaching needs Demonstrates concepts physically so students can link theory to observable behavior during experiments. Durable permanent magnet design reduces setup complexity and maintenance compared with electromagnet arrangements. Clear color coding of poles and accessible components make it easier for instructors to explain magnetic polarity, armature rotation and brush contacts. Practical use scenarios Classroom physics demonstration: instructor turns the manual mechanism while students measure output voltage and observe how rotation speed affects voltage. Laboratory experiment: small groups test load behavior at specified speeds and record no load versus loaded voltages for analysis. Science projects and teacher training: use as a hands on model to prepare lesson plans or to show conversion principles during workshops. Includes the complete generator assembly with stator, rotor, brushes, base plate and manual mechanism. Designed for education use to illustrate the basic structure and working principle of AC and DC generators.