U4713 OTIS KING Cylindrical Slide Rule Pocket Calculator

Review OTIS KING Cylindrical Slide Rule Pocket Calculator Model

Introducing the Otis Engineering King U4713 Cylindrical Slide Rule Pocket Calculator, a compact and versatile tool for performing complex mathematical calculations on the go. This sleek and stylish calculator boasts a durable anodized aluminum body, measuring just 3.7 inches long and 1.1 inches in diameter, making it small enough to fit comfortably in a pocket or purse.

The Otis King U4713 features a high-precision, 10-inch cylindrical slide rule with 0.001 inch graduations, allowing for calculations with an impressive level of accuracy. The slide rule is protected by a clear acrylic cover, which not only shields it from potential damage but also allows for easy reading of the scale.

This pocket calculator also includes a set of 15 logarithmic and exponential functions, enabling you to perform common mathematical operations such as natural logarithms, base 10 logarithms, and exponentials with ease. The calculator also includes a built-in square root function and a reciprocal function, further expanding its capabilities.

The Otis Engineering King U4713 Cylindrical Slide Rule Pocket Calculator is designed with a user-friendly interface, featuring large, easy-to-read numbers and clear markings on the slide rule. It also includes a conveniently located on/off switch, allowing you to conserve battery life when not in use.

Powered by a single LR44 battery (included), this calculator offers a long battery life and reliable performance. The battery compartment is easily accessible through a screw-off back cover, ensuring that replacing the battery is a simple and hassle-free process.

In summary, the Otis Engineering King U4713 Cylindrical Slide Rule Pocket Calculator is an essential tool for anyone who requires accurate mathematical calculations on the go. Its compact size, high precision, and versatile functions make it an indispensable addition to any toolkit or backpack.

The Otis King U4713 Cylindrical Slide Rule Pocket Calculator is a classic calculating tool that has gained popularity among mathematics enthusiasts and professionals due to its unique design and versatility. Here are some pros and cons of buying this calculator to help you make an informed decision:

1. Versatility: The Otis King U4713 is not just a calculator but also a slide rule, which makes it a perfect tool for performing complex mathematical calculations, especially in fields such as engineering, physics, and finance.

2. Compact and Portable: The pocket-sized design of the calculator makes it easy to carry around, making it an ideal choice for students, engineers, and professionals who need to perform calculations on the go.

3. Durable: The calculator is made of high-quality materials, including brass and stainless steel, which makes it durable and long-lasting.

4. Precision: The calculator is known for its high level of precision, making it an accurate tool for performing calculations.

5. Retro design: The retro design of the calculator appeals to many people who appreciate classic and stylish designs.

1. Complexity: Using a slide rule calculator can take some time to get used to, especially for those who are used to using digital calculators.

2. Limited functions: The slide rule calculator is not as versatile as a digital calculator, as it cannot perform complex functions like trigonometric and logarithmic calculations directly.

3. Expensive: Compared to digital calculators, slide rule calculators can be more expensive.

4. Requires manual effort: Using a slide rule calculator requires more manual effort than using a digital calculator, as the user needs to slide the rules to perform calculations.

The Otis King U4713 Cylindrical Slide Rule Pocket Calculator is a high-quality, durable, and accurate calculating tool that is perfect for those who need to perform complex mathematical calculations on the go. However, it may take some time to get used to, and it is more expensive than digital calculators. If you are looking for a tool that can perform a wide range of functions quickly and easily, a digital calculator may be a better choice. But if you appreciate the classic design and the unique benefits of a slide rule calculator, the Otis King U4713 is definitely worth considering.

If you are a math enthusiast, an engineer, or a professional who needs to perform complex calculations on the go and appreciates the classic design of a slide rule calculator, the Otis King U4713 Cylindrical Slide Rule Pocket Calculator is a great investment. However, if you need a calculator that can perform a wide range of functions quickly and easily, a digital calculator may be a better choice for you. Ultimately, the decision depends on your specific needs and preferences.

Details:

Good condition. Otis King cylindrical slide rule pocket calculator model U4713.

specifications vintcalc:

• brand: Otis King
• mpn: U4713
• part type: Pocket Calculator
• country of origin: England
• vintage: Yes

payments vintcalc:

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

shipping vintcalc:

• class: expedited
• service: usps priority mail padded flat rate envelope
• type: fixed
• transit: 4-8 days
• carrier: usps

offer vintcalc:

• in stock #: 2
• availability: in stock
• options: ship-to-home
• prices: $99.99–$244.29
• item condition: Used
• started: april 30, 2026
• sold #: 5

general vintcalc:

• category: Electronics > Vintage Calculators

returns vintcalc:

• policy: no returns

seller vintcalc:

• # reviews: 5541
• city: Kingman, arizona
• rating: 100.0%