Technico 7SR (FIVE FUNCTIONS)
The Technico 7SR is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 18 keys, and a VFD (vacuum fluorescent) display. The power source is 3xAA.
Facts at a glance:
If you have a Technico 7SR 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: