Boy howdy-this is a neat site!
Never taken formal electronics classes-but am planning to late in my career. I have taken on a project-unique as it may be, it is probably a snap for all you seasoned ones.
I am looking for an out of the box solution if available. I am working on a restoration project for a historic site here in CA. The application is a timer that starts counting down once energized, and counts down one minute-and at the 58, 59 and 60 second mark, provides a -48vdc pulse to ring a bell three times-then the cycle starts again until the system is de energized.
The timer should be a solid state unit powered by 110ac input, and the output will be -48vdc to drive the bells.
In what I have read so far, the 555 timer appears to be a workhorse timer. I have also seen timer kits on line (pre assembled and kits). The tricky part is the output for the -48vdc bells. I would be quite estatic if the board could assist me in resolving this project.
Thank you for your time ~~!
DavidB
Never taken formal electronics classes-but am planning to late in my career. I have taken on a project-unique as it may be, it is probably a snap for all you seasoned ones.
I am looking for an out of the box solution if available. I am working on a restoration project for a historic site here in CA. The application is a timer that starts counting down once energized, and counts down one minute-and at the 58, 59 and 60 second mark, provides a -48vdc pulse to ring a bell three times-then the cycle starts again until the system is de energized.
The timer should be a solid state unit powered by 110ac input, and the output will be -48vdc to drive the bells.
In what I have read so far, the 555 timer appears to be a workhorse timer. I have also seen timer kits on line (pre assembled and kits). The tricky part is the output for the -48vdc bells. I would be quite estatic if the board could assist me in resolving this project.
Thank you for your time ~~!
DavidB