749-A UNISONIC Calculator Box Display Mem Rm

Review UNISONIC 749 Vintage Calculator 1970s Box Green Display Mem Rm Cm Tested

The Unisonic 749-A calculator is a vintage electronic calculator manufactured in the 1970s. This calculator boasts an elegant design with a distinctive box shape and a compact size, making it a popular collector's item among electronics enthusiasts.

The calculator features a black and orange color scheme with bold, white numeric keys. The 12-digit display is located at the center of the device, surrounded by a protective dome-shaped cover. The calculator can perform basic arithmetic functions, including addition, subtraction, multiplication, and division. It also includes memory functions for recalling and storing results.

One unique feature of the Unisonic 749-A calculator is its use of membrane switches instead of traditional mechanical keys. Membrane switches consist of a thin, flexible layer that registers a touch and sends an electrical signal. This design not only makes the calculator quieter to use but also eliminates the need for moving parts, making it more durable and resistant to wear and tear.

The calculator measures approximately 10 inches long, 5 inches wide, and 2 inches tall, making it a convenient size for carrying in a briefcase or backpack. It requires four AA batteries for operation, which can be easily accessed through the battery compartment located at the back of the device.

The Unisonic 749-A calculator is a testament to the ingenuity and innovation of electronic engineering in the 1970s. Its timeless design and functional capabilities continue to impress and inspire collectors and enthusiasts alike. Whether you're a history buff, a tech aficionado, or simply looking for a unique and functional addition to your collection, the Unisonic 749-A calculator is a must-have.

The Unisonic 749-A calculator, manufactured in the 1970s, is a vintage electronic device known for its box display, Mem, RM, CM functions, and unique design. Here are some pros and cons that might help you decide if buying this calculator is the right choice for you.

1. Vintage Appeal: The Unisonic 749-A calculator is a collector's item and adds a vintage touch to any office or workspace.

2. Durable: With its solid build quality, the calculator can withstand daily use for extended periods.

3. Functionality: The calculator offers a range of functions, including Mem, RM, and CM, which were advanced features at the time of its release.

4. Manual Calculation: The lack of a battery or power source makes it a reliable option for manual calculation, especially during power outages.

1. Limited Functionality Compared to Modern Calculators: The Unisonic 749-A lacks the advanced features and computational power of modern calculators.

2. Difficulty in Obtaining Replacement Parts: Due to its age, finding replacement parts for the calculator might be challenging.

3. Lack of Backlight: The calculator does not have a backlight, making it difficult to use in low-light conditions.

4. Slower Calculation Speed: The calculator's mechanical design results in slower calculation speeds compared to modern electronic calculators.

In conclusion, the Unisonic 749-A calculator is an excellent choice for those who appreciate vintage technology, value durability, and prefer manual calculation. However, for individuals who require advanced features and faster calculation speeds, a modern electronic calculator may be a better option. Ultimately, the decision to buy the Unisonic 749-A calculator depends on your personal preferences and needs.

Details:

Has memory addition subtraction and recall feature. Calculator is about 6 inches long. Missing rubber foot on bottom. Tested and works.

Box is in poor condition. Unisonic 749-A vintage calculator 1970s w box green display mem rm cm tested, used vintage item. Has a small instructions paper.

specifications vintcalc:

• brand: Unisonic
• mpn: 749-a
• part type: Display Calculator Box
• color: Silver
• vintage: Yes
• display color: Green

general vintcalc:

• category: Electronics > Vintage Calculators

offer vintcalc:

• sold #: 12
• best offers: true
• started: september 30, 2025
• availability: in stock
• quantity: 1
• options: ship-to-home

seller vintcalc:

• city: rathdrum, idaho
• # reviews: 4060
• rating: 100.0%

shipping vintcalc:

• type: calculated
• service: usps ground advantage, usps priority mail
• transit: 3-7 days
• class: standard, expedited
• carrier: usps

returns vintcalc:

• policy: no returns

payments vintcalc:

• other
• wallet: google-pay
• credit card: mastercard