Prismatic 500 (P500)
The Prismatic 500 is an arithmetic calculator with algebraic logic. It has 5 functions, 20 keys, and an LCD (liquid crystal) display. The power source is 2xPP3 9V. Note: Dataking LC-800; Lloyd's 40. Early LCD model.
Facts at a glance:
|Power Source||2xPP3 9V|
If you have a Prismatic 500 that is no longer working, you can first try replacing the 2xPP3 9V 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: