Adler 81 (EC11)
The Adler 81 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 20 keys, and an LED (light-emitting diode) display typical of calculators of this era. The power source is 3xAA batteries. The calculator was manufactured in England;Germany. Note: Rebadged Anita 811 or Triumph 81
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 5 |
| Keys | 20 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | LED |
| Length | 119mm |
| Width | 68mm |
| Thickness | 24mm |
| Weight | 140g |
| Power Source | 3xAA batteries |
| Country | England;Germany |
| Original price | $170 |
| Year introduced | 1973 |
| Year discontinued | 1974 |
Replacements:
If you have an Adler 81 that is no longer working, you can first try replacing the 3xAA 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: