Help needed: looking for the electronic schedule of this device! Recently I found a "Digitor Learning Arithmetic Module", one of the earliest educational toys that used a microprocessor. They were produced form 1974 to 1977, about 100,000 were sold, mostly to schools. Unfortunately, it's not working properly. When I connect power for a split second all the display digits light up, after that they are dead, only the operator (+ - X /) burns (and changes when you press the corresponding button on the key pad). When opening the device, it looked all clean like it was made yesterday, and there are no parts that are obviously burnt or broken. However, it might be that some parts are taken out (see notes in pictures), and the only ways I can be sure about that is to check it on the schedule or compare it to someone else's Digitor. There is very little technical information on these devices on the web; maybe I get lucky when writing the Intel company, maybe I find a forum which has some expertise.. Maybe one day someone will find this picture and help me out.. That would be awesome!

Fourth and fifth-graders at Bryan's Fannin Elementary School receive backpacks filled with educational toys and games from members of the Business Student Council. [Photo: Nicholas Roznovsky/Mays Communications]