# Tokyo Electronics Applications Labs Technipet 813

The Tokyo Electronics Applications Labs Technipet 813 is an arithmetic calculator with algebraic logic. It has 7 functions, 22 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAA.

## Facts at a glance:

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

Type | Arithmetic |

Functions | 7 |

Keys | 22 |

Logic | Algebraic |

Display type | VFD |

Length | 140mm |

Width | 89mm |

Power Source | 4xAA |

Year introduced | 1972 |

## Replacements:

If you have a Tokyo Electronics Applications Labs Technipet 813 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:

See other calculators by Tokyo Electronics Applications Labs