Qualitron 1445 Slide Rule
The Qualitron 1445 Slide Rule is a scientific calculator with 8 digits precision and algebraic logic. It has 20 functions, 26 keys, and a VFD (vacuum fluorescent) display. The power source is 4xAA.
Facts at a glance:
If you have a Qualitron 1445 Slide Rule that is no longer working, you can first try replacing the 4xAA batteries. If that doesn't solve the problem, then you can consider replacing the calculator with a modern equivalent.
We suggest the following current model as a replacement: