Radofin 875 (Professional Slide Rule)
The Radofin 875 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 9 functions, 23 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 4xAAA.
Facts at a glance:
If you have a Radofin 875 that is no longer working, you can first try replacing the 4xAAA 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: