Binatone Mastermind (Feb-03)
The Binatone Mastermind is an arithmetic calculator with 8 digits precision and algebraic logic. It has 5 functions, 23 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is PP3 9V. Note: Adman L-0831T
Facts at a glance:
|Power Source||PP3 9V|
If you have a Binatone Mastermind that is no longer working, you can first try replacing the PP3 9V battery. 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: