This is a four-digit alarm clock based on the Mostek MM5316 clock chip.
The clock uses four individual vacuum flourescent display tubes to show the time. It is wired for 12-hour operation, with AM/PM being indicated by a flashing segment in the left-most tube.
The alarm sound comes from the small speaker located to the right of the display tubes.
Five push-button switches control the operation of the clock.
Click here for the Home page.
Click here for the Wanted page.
Last updated October 28, 2006