# Longines Symphonette Battery-AC Electronic Calculator

The Longines Symphonette Battery-AC Electronic Calculator is an arithmetic calculator with 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:** Made by Texas Instruments.

## Facts at a glance:

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

Type | Arithmetic |

Functions | 5 |

Keys | 18 |

Logic | Algebraic |

Display type | LED |

Length | 150mm |

Width | 89mm |

Thickness | 38mm |

Power Source | 4xAA |

Year introduced | 1972 |

## Replacements:

If you have a Longines Symphonette Battery-AC Electronic Calculator 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: