# Sperry Remington 663

The Sperry Remington 663 is an arithmetic calculator with 6 digits precision and algebraic logic. It has 4 functions, 18 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAA.
**Note:** 6 digit display, 12 digits internal precision

## Facts at a glance:

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

Type | Arithmetic |

Functions | 4 |

Keys | 18 |

Precision | 6 |

Logic | Algebraic |

Display type | VFD |

Length | 153mm |

Width | 80mm |

Thickness | 35mm |

Weight | 234g |

Power Consumption | 0.600000W |

Power Source | 4xAA |

Year introduced | 1973 |

Year discontinued | 1974 |

## Replacements:

If you have a Sperry Remington 663 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: