You don't need a AM radio to use Tempest for Eliza. You can also use a photodiode and an amplifier to make your monitor play music! You basically convert sound to light and then convert that light back to sound... pretty neat stuff. See YourMathsTutor for a diagram and instructions on how to build your own.
Friday, November 16, 2007
More fun using Tempest for Eliza and a photodiode
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