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107 results
Hello People! Here is the 9th Episode of Makerbench Series. In this week of Makerbench, Sathyan tries to build a clock using a ...
27,911 views
5 years ago
Vacuum tubes illuminated by knockoff Neopixels display slowly changing colors. A Morse code message appears on the top LED ...
655 views
7 years ago
Table of content: 00:05 Introduction 00:46 Switch 01:20 Switching high power 02:27 Different types of switches 05:17 Contact ...
11,941 views
10 years ago
The Addimat adding machine, also called the Addipresto, was patented by Sergio Lanza in 1956 and made in Italy from then until ...
2,534 views
4 years ago
The Facit CA1-13 is a fully automatic electromechanical calculator. Facit made their first fully automatic calculator in 1945, and that ...
5,374 views
2 years ago
A demonstration of the model E Comptometer. Find out more on my website: http://www.jaapsch.net/mechcalc/comptometer.htm.
1,295 views
The Sumlock was made by Bell Punch in the UK from 1940 till the late 60s, but these two were made in the early 1950s. They are ...
1,157 views
This video was sponsored by Wizards of the Coast Go to http://playdnd.com/ to learn more! See Dungeons & Dragons: Honor ...
1,443,301 views
1 year ago
The Sumlock was made by Bell Punch in the UK from 1940 till the late 60s. It is used exactly like the Comptometer. Here is the first ...
1,059 views
The Demos II is a rare and unusual calculator. It uses a toothed segment mechanism and was intended to be a simpler, cheaper ...
1,597 views
The making of a computer-in-a-brick. I've chopped out sections that went on a bit, but tried to leave in enough of everything to ...
1,294,074 views
This adding-listing machine was made by Serio in Italy from about 1960 till 1965. It is manually driven, and handles subtraction ...
898 views
The Smith-Corona-Marchant 1011CB adding machine has a very distinctive styling in orange and brown. For more information ...
1,000 views
This is a stepped drum mechanical calculator. It was made from 1913 till 1929 in Germany, but only about 6000 were made.
1,171 views
These simple adding machines were made by the Carlsen Brothers in Denmark - model A from 1946 to 1950, model B from 1951 ...
3,823 views
6 years ago
The Beaver is a very rare adding machine that was made in Japan in 1964. It was exported and sold by Ito-Ya Ltd., a stationery ...
1,840 views
The American Adding Machine was made from about 1913 till 1922 by the American Can Company, and for a short while after ...
1,719 views
Mercedes-Euklid calculators use a mechanism invented by Christel Hamann in about 1906, called proportional levers. It uses 10 ...
887 views
La HP 25 fait partie des toutes premières calculatrices programmables de chez HP. Références : Catalogue HP (1976) ...
373 views
The British Calculator, or BriCal, is a simple adding machine for British currency. It was invented by Herbert and Mabel Dickinson ...
4,516 views