# MBO Delta 30

The MBO Delta 30 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 8 functions, 28 keys, and a VFD (vacuum fluorescent) display. The power source is a single AA battery.

## Facts at a glance:

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

Type | Arithmetic |

Functions | 8 |

Keys | 28 |

Precision | 8 |

Logic | Algebraic |

Display type | VFD |

Power Source | a single AA battery |

Year introduced | 1975 |

## Replacements:

If you have a MBO Delta 30 that is no longer working, you can first try replacing the a single AA 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: