Historic Tech is located in Royal Wootton Bassett, United Kingdom
Madas Xie Meda - Early Semi-automatic Calculator c.1922
Secure Payments By
This rare MADAS XIe Meda calculator dates from c1922. During the early part of the 20th Century mechanical calculators became an integral feature for every office, but such machines were still manual requiring the user to rotate a handle to use. This MADAS machine was one of the very first in the world to incorporate an early electric motor to speed up the operation, helping open the doors to ever more automatic and efficient calculating. The MADAS In 1897 a new Swiss firm started by H.W. Egli joined the professional calculator market by launching their highly influential 'Millionaire' mechanical calculator. It was a large and impressive instrument which required its own stand and earned the young firm a good reputation, but as Egli was to realise this also held it back for the average small office. In 1914 the firm launched a far smaller successor which they called the MADAS (Multiplication-Automatic-Division-Addition-Subtraction). Offered initially as a standard hand-driven device, in 1916 a forward thinking semi-automatic electric version was also added to the product line. This was called the IXe and became one of the first electric calculators in the world. While the operator still had to set the dials manually the calculation was sped up substantially with the small externally-mounted motor. In 1922 the IXe was refined further and re-released as the XIe which is for sale here. It seems few of these IXe machines were really sold before their next model was released making this a rare and desirable survivor today. I won't go into the calculating technicalities of this machine as Gerald Saudan has produced a fantastic website dedicated to the Millionaire and Madas Calculators. Dimensions: 64cm long x 36 cm deep x 16cm high. Important Notice: This calculator is now 100 years old and because of the design and age of the parts this machine is strictly being sold as electrically non-working for display purposes only. This is for two key reasons- it can't be safely earthed and if used too much the force of the powerful motor is liable to damage the elderly mechanism quite quickly. Therefore I strongly do not recommend you try to connect this to a mains supply unless you are properly qualified to do so and fully understand the risks. For the purposes of the repair this was run via an isolator and at low RPM only.
Historic Tech has clarified that the Madas Xie Meda - Early Semi-automatic Calculator c.1922 (LA355211) is genuinely of the period declared with the date/period of manufacture being 1922
As you can see this example is being offered in nice original condition having been overhauled internally for me by Jerry Walker. As always his level of expertise and attention to detail is second to none, and a full series of online videos following his work of this machine (including painstakingly rewinding the motor by hand) is available to view. Cosmetically I've tried to keep this as authentic and untouched as possible. There are a few small bits missing such as a few holding screws, a rubber foot, a metal guide, the cover for the main button, and the motor and belt covers had to be refinished. However this machine still retains much of its original black finish (unlike many) and natural light wear. Internally this has been cleaned, repaired and checked.
Free UK Shipping. This is heavy so due to the weight and size international shipping is not automatically included in the listed price. Please contact me first for a quote before purchasing.
This Madas Xie Meda - Early Semi-automatic Calculator c.1922 is located in Royal Wootton Bassett, United Kingdom