# Olympia CD 51

The Olympia CD 51 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.

## Facts at a glance:

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

Type | Arithmetic |

Functions | 5 |

Keys | 18 |

Precision | 8 |

Logic | Algebraic |

Display type | LED |

Length | 138mm |

Width | 80mm |

Thickness | 30mm |

Weight | 160g |

Power Source | 4xAA |

Year introduced | 1972 |

## Replacements:

If you have an Olympia CD 51 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: