The Hiradastechnika PTK-1060 is a programmable calculator with algebraic logic. It has 29 keys, and an LED (light-emitting diode) display, typical of calculators of this era. The power source is 4x1.5V sealed. The calculator was manufactured in Hungary. Note: Elektronika B3-21(LED version) OEM version of the first Soviet Elektronika B3-21calculator; with western labeling (not cyrillic).<br>RPN.
Facts at a glance:
|Power Source:||4x1.5V sealed|