# Radio Shack EC-220

The Radio Shack EC-220 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 PP3 9V.
**Note:** Rockwell 8R; 9TR; House of Fraser 8F

## Facts at a glance:

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

Type | Arithmetic |

Functions | 5 |

Keys | 18 |

Precision | 8 |

Logic | Algebraic |

Display type | LED |

Length | 148mm |

Width | 70mm |

Thickness | 20mm |

Weight | 130g |

Power Source | PP3 9V |

Year introduced | 1975 |

Year discontinued | 1976 |

## Replacements:

If you have a Radio Shack EC-220 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 models as possible replacements: