Epos-73 (B3-11)

Calculator
Date of appearance: 1974
Made in: USSR
Dimensions: 140 × 55 × 225 mm
Weight: 1 kg or less g
Tags: museumofsovietcalculators


The Elektronika B3-11 calculator, also known as Epos-73, was manufactured at Electronpribor (Fryazino) from 1974. The plant is still operating today, mainly as a manufacturer of measuring equipment. The Elektronika B3-11 ranks among the simplest of calculators, its repertoire consisting of the basic arithmetic operations and semi-automatic exponentiation (whole positive exponents only). Its user-friendly features won it a gold medal at the VDNKh exhibition in 1974. While the calculator is technically eight-digit, the results are shown on a nine-digit vacuum fluorescent display. The ninth digit is reserved for negative and overflow signs. Numbers are shown in a decimal format with a natural point, fixed by the first number throughout the calculation process, until the "C" key is pressed. The calculator’s stand lets the user change the angle for a better viewing experience and more effective cooling. The calculator is powered by a 220V mains supply, with a power intake of 10 W or less. Source: A.M. Baraboshkin Elektronika Epos, pp. 6–7

Epos-73 (B3-11)
1.jpg
5.jpg
6.jpg
2.jpg
3.jpg
5a.jpg
4.jpg
7.jpg
8.jpg
10.jpg
11.jpg