The buzzer failed. Yes, building a working hidden buzzer is more difficult than it looks. Nikita and Zack's buzzer worked well and earlier on in our Hillwood Herald blog session, but the rest of us could not get our buzzers to work. The question now is, Why?
The tape? The batteries or the alarm? Too much aluminum or not enough. We're not sure, and we did compare our alarm set up to that of Nikita and Zack's. They looked pretty much the same, but clearly they did not work the same. Jay will be discussing the project with his dad for advice, and next Friday, we will try again.