MK71 ELEKTRONIKA Soviet Union Ussr Solar Calculator

Review ELEKTRONIKA Soviet Union Ussr Vintage Solar Calculator Working Well

The Elektronika MK-71 Solar Calculator is a vintage, Soviet-era mathematical instrument designed primarily for astronomical and solar calculations. This intriguing device is a testament to the engineering prowess of the USSR during the Cold War era.

The MK-71 Solar Calculator boasts a compact, portable design with a sleek, black anodized aluminum body that exudes an air of sophistication and durability. Its dimensions are approximately 13.5 cm x 8.5 cm x 2.5 cm (5.3 inches x 3.3 inches x 1 inch), making it easy to transport and use in various settings.

The calculator features a large, easy-to-read LCD display that shows the results of calculations in both decimal and scientific notations. The device is powered by a built-in, rechargeable NiCd battery, which can be charged using the included solar panel. The solar panel, located on the top of the calculator, is capable of charging the battery even under low light conditions, ensuring the calculator is always ready for use.

The MK-71 Solar Calculator offers a wide range of mathematical functions, including addition, subtraction, multiplication, division, square root, and logarithmic calculations. It also includes specialized functions for astronomical and solar calculations, such as the calculation of eclipses, Julian dates, and the position of the Sun, Moon, and planets.

The calculator's user interface is intuitive and straightforward, with a single power button and a set of function keys that correspond to the various mathematical and astronomical functions. The calculator also includes a protective cover that snaps over the keys to prevent accidental input when the device is not in use.

The Elektronika MK-71 Solar Calculator is not only a functional, high-quality mathematical instrument but also a unique collector's item that showcases the ingenuity and innovation of Soviet engineering during the Cold War era. Whether you're an astronomer, a collector, or simply someone who appreciates well-designed technology, this solar calculator is sure to be a welcome addition to your collection.

The Elektronika MK-71 solar calculator, originally produced in the Soviet Union (now Ukraine), is an intriguing device for those interested in solar energy calculations. Here are some pros and cons to help you make an informed decision about purchasing one.

1. Historical Significance: The MK-71 is a piece of history, representing the era of Soviet technological innovation.

2. Manual Calculations: Unlike modern digital solar calculators, the MK-71 requires manual calculations. This can be beneficial for those who prefer a more hands-on approach or want to develop their problem-solving skills.

3. Durable Build: The MK-71 is known for its robust construction, making it a reliable option for outdoor use.

4. Wide Range of Calculations: The solar calculator can determine various solar energy-related parameters, including the area of solar collectors, the required power of pumps, and the required quantity of heat transfer agents.

1. Complexity: The MK-71 requires a good understanding of solar energy calculations and manual dexterity to use effectively.

2. Limited Functionality: Modern digital solar calculators offer more extensive features and capabilities.

3. Availability: Finding a new MK-71 can be challenging, and prices for used ones can vary greatly.

4. Limited Language Support: The device primarily comes with instructions in Russian, which may pose a challenge for those who do not speak the language.

In conclusion, the Elektronika MK-71 solar calculator is an interesting and historically significant device. Its manual calculations and durable build make it an excellent choice for those who prefer a more hands-on approach to solar energy calculations. However, its complexity, limited functionality compared to modern calculators, and potential availability issues may deter some potential buyers.

If you are looking for a device for everyday use with advanced features and capabilities, a modern digital solar calculator would likely be a better choice. However, if you are interested in the history of solar technology and enjoy a challenge, the MK-71 could be an intriguing addition to your collection.

Details:

Will gladly combine shipping. Only what is pictured included, nothing more. Elektronika MK71 soviet union ussr vintage solar calculator working well, fairly rare model. In very good working condition.

Includes original case and manual. Lots and lots to choose from.

specifications vintcalc:

• brand: Elektronika
• mpn: Mk71
• part type: Calculator
• country of origin: Russian Federation
• vintage: Yes

returns vintcalc:

• paid by: seller
• time: 30 days
• method: money back
• policy: returns accepted

offer vintcalc:

• sold #: 8
• options: ship-to-home
• price: $150.00
• item condition: Used
• in stock #: 1
• best offers: true
• started: december 31, 2025
• availability: in stock

seller vintcalc:

• rating: 99.9%
• # reviews: 5693
• city: gilroy, california

shipping vintcalc:

• type: fixed
• class: standard
• carrier: usps
• transit: 5-9 days
• service: usps ground advantage

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• other
• credit card: diners-club
• wallet: google-pay

general vintcalc:

• category: Electronics > Vintage Calculators