LC270A UNISONIC Calculator

Review UNISONIC Electronic Calculator Vintage Mint

Unisonic LC270A Calculator - A Piece of 1980s Calculating History

The Unisonic LC270A Calculator is a retro, programmable calculator produced by Hewlett-Packard in 1981. This calculator represents a significant leap in calculating technology that was popular during the 1980s.

The Unisonic LC270A is characterized by its sleek, silver-gray body with a black LCD screen. The calculator measures approximately 7.5 inches long, 3.5 inches wide, and 1.5 inches thick, making it a portable and convenient solution for complex mathematical computations.

This calculator is packed with a host of features that were considered advanced for its time. It offers scientists, engineers, and students the ability to perform a wide range of mathematical functions, including basic arithmetic, trigonometric, logarithmic, and exponential calculations. Additionally, it includes built-in statistical functions, such as mean, median, mode, standard deviation, and variance.

The Unisonic LC270A Calculator is programmable, which means users can store and recall up to 8 different programs or equations. The calculator also features a constant memory, allowing users to store and recall up to 20 constants.

One of the most notable features of this calculator is its ability to perform inverse functions directly from the keypad, without the need to press multiple keys to enter functions and then the numbers. For instance, users can calculate the square root of a number by pressing the square root key once, and the calculator will display the result.

The Unisonic LC270A Calculator boasts an impressive accuracy of up to 12 decimal places, ensuring precise results for even the most complex calculations. It is powered by a replaceable 3-volt battery, which can be easily accessed through the battery compartment located at the back of the calculator.

In summary, the Unisonic LC270A Calculator is a versatile and powerful calculating tool that was at the forefront of calculating technology during the 1980s. Its sleek design, advanced features, and precise calculations make it a popular choice among collectors, hobbyists, and professionals alike. Whether you're a history buff, a collector, or simply someone who appreciates the beauty and functionality of vintage technology, the Unisonic LC270A Calculator is a must-have addition to your collection.

The Unisonic LC270A calculator, manufactured in 1981, was a popular scientific calculator of its time. Here are some pros and cons that could help you decide if buying one would be suitable for your needs.

1. Advanced functions: The Unisonic LC270A offered a wide range of advanced mathematical functions, including trigonometric, exponential, and logarithmic operations, making it an excellent tool for students and professionals.

2. Durable design: The calculator's rugged construction and compact size made it a reliable choice for use in various environments, such as laboratories, classrooms, or fieldwork.

3. Easy-to-read display: The LC270A's large, clear LCD display enabled users to easily view calculations and input data.

4. Battery-operated: The calculator's battery-powered operation provided the convenience of being portable and not being tethered to a power outlet.

1. Limited memory: The Unisonic LC270A had limited memory capacity, which might be a disadvantage for users who need to store and recall complex mathematical expressions or large data sets.

2. No programming capabilities: This calculator did not support user-defined functions or programs, which could be a limitation for more advanced users.

3. No built-in statistical functions: The LC270A did not have built-in statistical functions, such as mean, median, mode, or standard deviation, which could be a drawback for users in fields like statistics or data analysis.

The Unisonic LC270A calculator is a solid choice for users who require a dependable, portable device for basic to advanced mathematical computations. Its advanced functions and durable design make it an excellent tool for students and professionals. However, its limited memory capacity, lack of programming capabilities, and absence of built-in statistical functions may make it less suitable for users in specific fields or those who require more advanced features.

If you are looking for a reliable, portable calculator for general mathematical computations and do not need advanced programming capabilities or extensive statistical functions, the Unisonic LC270A could be an excellent choice. However, if you require more advanced features, consider exploring modern scientific calculators or graphing calculators that offer expanded memory capacity, programmability, and built-in statistical functions.

Details:

Unisonic electronic calculator with memory and auto shut off. No scratches or marks. Pre-owned by my father. Includes calculator, instruction manual, protective cover, original packaging.

Liquid crystal display LC270A 1981 condition: excellent, like new in original packaging.

specifications vintcalc:

• brand: Unisonic
• mpn: Lc270a
• model: Unisonic Lc270a
• part type: Calculator
• vintage: Yes

general vintcalc:

• category: Electronics > Vintage Calculators

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• policy: no returns

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• options: ship-to-home
• price: $19.95
• item condition: Open box
• availability: in stock
• started: june 8, 2026
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• sold #: 6
• in stock #: 1

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