The Elektronika MK-57 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 8 functions, 25 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 3xAA.
Facts at a glance:
If you have an Elektronika MK-57 that is no longer working, you can first try replacing the 3xAA 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: