# Calfax 616

The Calfax 616 is an arithmetic calculator with 6 digits precision and RPN (reverse polish notation) logic. It has 4 functions, 16 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is PP3 9V.

## Facts at a glance:

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

Type | Arithmetic |

Functions | 4 |

Keys | 16 |

Precision | 6 |

Logic | RPN |

Display type | LED |

Length | 127mm |

Width | 73mm |

Thickness | 25mm |

Power Source | PP3 9V |

Year introduced | 1975 |

## Replacements:

If you have a Calfax 616 that is no longer working, you can first try replacing the PP3 9V battery. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent.

We suggest the following current model as a replacement: