Elementary school: Some Edwards bell control panel. There were 10 bells installed inside + outside the school. There are Edwards 4" adaptabels (5), Edwards 10" adaptabels (4), and 1 Edwards adaptahorn (outside). Outside, The only 6" adaptabel we had was replaced with a 4" adaptabel, and one of the 4" adaptabels were replaced with a adaptabuzzer, then a 10" adaptabel. The only bell that doesn't work is the one in the gymnasium, a 10" adaptabel. I think it's disconnected, it hasn't worked since I began school there.
High school: The bells are over the PA system, and are controlled by a panel ( the company is named ______tone, have no clue). There are about 11 bells installed around the school. A mix of 6" adaptabels, and 4" IBM and Simplex bells. I don't know if they were part of an old bell system, or are used for another system, but I have never heard them go off.
Bringing up an old topic I know, but I have some new info and I will be uploading some videos as well.
I have learned a lot more about the bell system at my high school. I had previously said the bells were controlled by a panel in the main office. This year, I was Minister of Communications for our student council, which basically I did announcements and advertising, so I had access to the PA system all year. I learned that the bells weren't controlled by the Executone panel (that was actually a security alarm panel), but by the PA system itself.
The PA system is made by Telecor. We used to have an old Telecor system, installed in 1988. We just got a brand new one, the Telecor 2, during the march break, when the old one fried in December. I had learned how to use both these systems, and before you knew it, I was actually teaching the administration staff how to program bell schedules and bell tones. In fact, one of the guys who installed the system during the break told me I knew more about these systems than most of the people he works with. As I said, The system itself serves as a PA system for paging the school and classrooms, but also as a bell system. It has a tone generator in it, and you can program/customize any tones. The consoles that are used for paging and programming are basically telephones. If you're into PA systems and stuff like that its very neat, I will post some videos later.
As for the actual school bells in my building, I believe that the school had an old IBM bell/clock control system at one point, with buzzers in the classrooms as well. All the classrooms in the building have a backbox with an IBM sticker and instructions on it, which are now just have a nail in them to hang the new Edwards clocks.