The American 1776 is an arithmetic calculator with 6 digits precision and RPN (reverse polish notation) logic. It has 4 functions, 15 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V. Note: No decimal point.
Facts at a glance:
|Power Source||PP3 9V|
You can download the American 1776 manual from this external link.
If you have an American 1776 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 model as a replacement: