A compact DIY AM transmitter kit designed for handson learning and classroom experiments. The Radio Medium Transmitter lets students and hobbyists build an adjustable AM transmitter that operates across the medium wave broadcast band from 530 to 1600 kHz. It demonstrates core radio and electronics concepts—frequency tuning, modulation, and basic RF circuitry—using a buildityourself approach. Key benefits Practical learning: Teaches soldering, circuit assembly, and fundamental AM radio principles through a complete build. Realworld compatibility: Transmits on the standard AM medium wave band (530–1600 kHz), so the signal can be received on ordinary AM radios within that band. Adjustable operation: Frequency tuning across 530–1600 kHz enables experiments with different carrier frequencies and simple demonstrations of tuning and interference. Classroomready: Designed for school experiments and demonstrations where visible, repeatable results are important for teaching. Key attributes Functionality: AM modulation transmitter with adjustable carrier frequency across the medium wave band (530–1600 kHz). Compatibility: Works with standard AM receivers that tune the 530–1600 kHz range; suitable for integration into classroom radio experiments. Form factor: Kit format intended for bench or classroom assembly; ideal for smallgroup or individual projects. Performance: Adjustable frequency across the full medium wave band to facilitate demonstrations of tuning, signal propagation, and reception on consumer AM radios. Typical use cases School experiment: Build and test the transmitter in a physics or electronics class to demonstrate amplitude modulation, frequency tuning, and basic antenna connections. Hobbyist project: Assemble the kit to learn RF circuitry, practice soldering, and experiment with shortrange AM transmissions using household AM radios for reception. Demonstration and prototyping: Use the adjustable frequency range for demonstrations of propagation and interference, or as a simple platform for testing antennas and receiver sensitivity. Assembly and learning outcomes The kit format encourages handson learning: students gain practical experience with circuit assembly, component identification, and testing. Adjustable frequency control supports active experimentation—students can observe how changing carrier frequency affects reception and interference. Suitable for guided lab sessions, stepbystep demonstrations, or independent study projects. Safety and compliance Intended for educational use. Users should follow local regulations governing radio transmission and operate the transmitter at legal power levels and in permitted environments. Supervision is recommended for school use. This DIY AM transmitter kit is a straightforward, educational tool for teaching and exploring medium wave radio concepts using the 530–1600 kHz AM band.