Rockwell 61R (ADVANCED SLIDE RULE)
The Rockwell 61R is a scientific calculator with 8 digits precision and algebraic logic. It has 21 functions, 20 keys, and a VFD (vacuum fluorescent) display. The power source is a sealed 3.6V NiCd re-chargeable battery pack with 6V charger. The calculator was manufactured in Mexico.
Manufactured in Mexico for Rockwell International, Anaheim, California, USA. Supplied with charger and cloth carrying case.
Facts at a glance:
| Feature | Value |
|---|---|
| Type | Scientific |
| Functions | 21 |
| Keys | 20 |
| Precision | 8 |
| Logic | Algebraic |
| Display type | VFD |
| Length | 156mm |
| Width | 84mm |
| Thickness | 24mm |
| Weight | 278g |
| Power Source | a sealed 3.6V NiCd re-chargeable battery pack with 6V charger |
| Country | Mexico |
| Original price | $80 |
| Year introduced | 1974 |
| Year discontinued | 1975 |
Replacements:
If you have a Rockwell 61R that is no longer working, you can consider replacing the calculator with a modern equivalent.
We suggest the following current model as a replacement: