# 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:

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

Type | Arithmetic |

Functions | 5 |

Keys | 18 |

Precision | 8 |

Logic | Algebraic |

Display type | LED |

Length | 152mm |

Width | 89mm |

Power Source | 4xAA |

Year introduced | 1973 |

Year discontinued | 1973 |

## Replacements:

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: