Radio Shack EC-475
The Radio Shack EC-475 is a scientific calculator with 8 digits precision and algebraic logic. It has 17 functions, 20 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V. Note: General Instrument EZ 3500
Facts at a glance:
|Power Source||PP3 9V|
If you have a Radio Shack EC-475 that is no longer working, you can first try replacing the PP3 9V battery. 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: