# Melcor 550

The Melcor 550 is an arithmetic calculator with algebraic logic. It has 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 |

Logic | Algebraic |

Display type | LED |

Length | 152mm |

Width | 76mm |

Power Source | PP3 9V |

## Replacements:

If you have a Melcor 550 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 models as possible replacements: