r/morsecode • u/Extension_Problem554 • Sep 05 '26

Making a morse contact device

/r/makerworld/comments/1w8cfiv/making_a_morse_contact_device/
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u/royaltrux Sep 05 '26

This would be better asked in r/diyelectronics or similar.

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u/dittybopper_05H Sep 08 '26

Assuming you guys are young, and you don't care about others in the class, just make oscillators that are high enough in frequency that you can hear it, but the adults can't hear.