Radio Shack EC-4002 (ALPHA-NUMERIC CALCULATOR-DIRECTORY ; statesman thin LCD)
The Radio Shack EC-4002 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 30 keys, and one of the early LCD (liquid crystal) displays which incorporated a yellow filter. The power source is 3x1.5V cell. The calculator was manufactured in Japan. Note: Toshiba LC-836MN MEMO NOTE 30
Facts at a glance:
|Power Source||3x1.5V cell|
If you have a Radio Shack EC-4002 that is no longer working, you can first try replacing the 3x1.5V cell 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: