Radio Shack EC-100 (BATTERY-AC ELECTRONIC CALCULATOR)
The Radio Shack EC-100 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 18 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 4xAA. Note: Longines Symphonette Battery-AC Electronic Calculator
Facts at a glance:
If you have a Radio Shack EC-100 that is no longer working, you can first try replacing the 4xAA batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent.
We suggest the following current models as possible replacements: