Faber-Castell TRX
The Faber-Castell TRX 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 2xAAA batteries. Note: Combination slide rule and calculator.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 5 |
| Keys | 20 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | LED |
| Length | 58mm |
| Width | 172mm |
| Thickness | 15mm |
| Power Source | 2xAAA batteries |
| Year introduced | 1974 |
| Year discontinued | 1974 |
Replacements:
If you have a Faber-Castell TRX that is no longer working, you can first try replacing the 2xAAA 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: