ELEKTRONIKA MK61 Programmable Calculator USSR !Excellent Condition!

Description

MK-61 is a programmable microcalculator with reverse Polish notation for engineering and scientific calculations.
It belongs to the third generation of
Soviet
programmable calculators.
Long lay without use, began to work dimly the first and third digits.
Technical parameters
Number system for entering and out
putting information: decimal;
Number of digits of the number's mantissa: 8;
Number of digits of the order of a number: 2;
Display: 12-bit luminescent indicator (8 mantissa + 2 order + 2 digits of mantissa and order signs);
Power supply: batteries of type A-316 or "quantum" 3×1.5 V or from the power supply unit;
Operating modes: programming / automatic operation;
Operating temperature: +10 to +35 °C at a pressure of 86 to 106 kPa;
Power, W: no more than 0.6;
Dimensions, mm: 170×80×38;
Weight without batteries, kg: no more than 0.25.