Handy Business Machine MCT-550
The Handy Business Machine MCT-550 is an arithmetic calculator with 8 digits precision and algebraic logic. It has 6 functions, 23 keys, and one of the early LCD (liquid crystal) displays which incorporated a yellow filter. The power source is 2x1.5V cell. Note: Micro-cassette recorder and calculator.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Arithmetic |
| Functions | 6 |
| Keys | 23 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | YLCD |
| Length | 145mm |
| Width | 70mm |
| Thickness | 38mm |
| Power Source | 2x1.5V cell |
| Year introduced | 1978 |
| Year discontinued | 1978 |
Replacements:
If you have a Handy Business Machine MCT-550 that is no longer working, you can first try replacing the 2x1.5V cell. 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: