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Published on Nov 12, 2010
IMPORTANT: Put a 2.2-10uF capacitor between the audio pole and the pin 5. This will make the sound output louder, and clearer. Use a 50+ volt capacitor. BEWARE VIEWERS: I just noticed a typo... 6 years later. Anyways the part of the video where I mentioned the speaker being connected to pin 3 off the 555 timer & the common ground. Well, that is incorrect. It typically will not cause failure. However it will not work. Pin 3 lands on ground in a simple audio application like this.
Update: As of 11/16/10, I just purchased a breadboard on ebay. I should be here sometime in December. Just figured I should notify everybody, that I am not proud of this mess, and I am better than that
Simple audio modulation of a 555 timer inputting audio into pin 5 of the timer. This works with use of a flyback (singing arc) or just for a frequency generator and a speaker.