# 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:

Feature | Value |
---|---|

Type | Scientific |

Functions | 17 |

Keys | 20 |

Precision | 8 |

Logic | Algebraic |

Display type | LED |

Length | 157mm |

Width | 76mm |

Power Source | PP3 9V |

Year introduced | 1976 |

Year discontinued | 1976 |

## Replacements:

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: