Litronix 2220R (memory)
The Litronix 2220R 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 3xAAA sealed.
Facts at a glance:
|Power Source||3xAAA sealed|
If you have a Litronix 2220R that is no longer working, you can first try replacing the 3xAAA sealed 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: