Radio Shack EC-4034
The Radio Shack EC-4034 is a graphing calculator with 10 digits precision and algebraic logic. It has 50 keys, and an LCD (liquid crystal) display. The power source is 4x3V cell. Note: Casio fx-7700G
Facts at a glance:
|Power Source||4x3V cell|
If you have a Radio Shack EC-4034 that is no longer working, you can first try replacing the 4x3V cell batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent.
We suggest the following current model as a replacement: