Uploaded July 2013 | Updated September 2026, 3 weeks ago

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And now for the finale of my first AVR synthesizer.

Find the Instructable at:
instructables.com/id/Post-Box-Synthesizer

Do you have a suggestion for a future video? Leave it in the comments below.

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Feel free to email me at:
humanharddrive@gmail.com
I'm happy to answer questions and comments.

Check out my blog at:
8bitprojects.blogspot.com