Man, I tried building one of these when I was in high school and didn&#x27;t know a damn thing about electronics. No multimeter, no oscilloscope, just a soldering iron and teenage idiocy. I put it together and (big shocker here) it didn&#x27;t work, and I didn&#x27;t have the vaguest idea of why it didn&#x27;t, or how to figure out why it didn&#x27;t. It pissed me off so much that I threw everything away and forgot about it.<p>I should really consider taking a second stab at it now that I have an engineering degree and a snowball&#x27;s chance of making it work.