Commodore SR4120D (4120R)
The Commodore SR4120D is a scientific calculator with 8 digits precision and algebraic logic. It has 30 functions, 48 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V. The calculator was manufactured in England.
Facts at a glance:
|Power Source||PP3 9V|
If you have a Commodore SR4120D 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: