Experience life before e-mail and texting, using Morse code and electromagnetism. Excite and engage makers of all ages as they re-create the experiments that led to the development of the first successful electrical telegraph. The device functions as sounder, buzzer, or relay. Introduce electromagnetism, application of waves, and circuits with this easy-to-assemble activity. Includes instructions. A battery source within the 6-V to 12-V range is needed but not supplied.
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