A vintage mechanical calculator made by Atvidaberg - Facit in Sweden. Determine best power jetting for various racing engines: unblown or blown drag racing, sprint car, circle or drag boat, top speed racing or any racing that uses MFI for ultimate power needs. This machine turns on, but makes a horrible buzzing noise and is therefore sold AS-IS for PARTS or REPAIR. £21.53. ... Curta Mechanical Calculator Type II #515062 Very Good Cond - 1960. The model is the C1-13, this particular design was produced between 1960 - 1964 and the serial number 799433 allows us to date it to 1961. | Browse our daily deals for even more savings! Buy Curta Calculator and get the best deals at the lowest prices on eBay! £11.16 postage. Get the best deal for Mechanical Calculator from the largest online selection at eBay.com. The Muldivo Calculating Machine Co. Ltd., "Specialists in Calculating Equipment since1912", was a distributor of mechanical and electronic calculators from many companies, including Guy's, IME, Madas, Precisa, Thales, Walther, and also manufactured some models. I want to contribute to the web community with pictures, user manuals and technical information about this items. | Free shipping on many items! whilst we continue to be part of the national effort to defeat a common enemy, w. Some have angled displays for easy viewing in a variety of lighting conditions. Large, easy-to-read displays and keys offer fast and accurate number entry. £14.32. This is only a small sample of mechanical calculators. A few calculators and most of my slide-rules are for sale. For more featured non-decimal machines see the Non-decimal Calculators section.. For featured British mechanical calculators see the associated British Vintage Calculators site.. Feel free to check out my books and manuals, too. £85.00. Vintage Fowler circular slide rule calculator. When it was introduced in 1952, this was the first calculator capable of producing a square root using only one key instead of a laborious process. Curta.org for information about Curta Calculators. Mechanical calculating machines date from the early 1600s - see the Calculator … There were many more models from many manufacturers. 35 watching. Great Savings & Free Delivery / Collection on many items ... Curta Mechanical Calculator T-Shirt - High Quality Gildan Pre Shrunk 100% Cotton. 55 sold. It has a 10 digit keyboard with 8 digit counter and 13 digit accumulator. Scam Warnings: There are two Curta scams going on right now: One is so-called "Cut Curtas," sold as "rare demonstration models." £40.00. Curta Calculator-Related Patents Full-Image on CD-ROM. Great Savings & Free Delivery / Collection on many items ... Odhner Original mechanical calculator/ adding machine, model 229, 1950s/60s. ), and more. Buy Vintage Calculator and get the best deals at the lowest prices on eBay! £8.00 postage. £4.20 postage. Aktiebolaget - Facit - LX Calculator Manual 10 this is a facit esa-0 calculating machine i was given it as a child by my late aunt who used to work at the gas board. or Best Offer. ), adding machines (Plus, Dirct etc. C … An online tool to show why your tuning intuition and experience has always worked! | Browse our daily deals for even more savings! Display calculators have a number of useful features that will make tallying numbers a breeze. mechanical calculators (Odhner, Brunsviga, Facit), adders (Addiator, Produx, Resulta, etc. You can see all of those with description in the gallery. Most are compact, making them easy to use and carry. For the mechanical fuel injection racer/builder/tuner. Facit LX Mechanical Calculator Block : Aktiebolage . Get the best deal for Curta Calculators from the largest online selection at eBay.com. | Free shipping on many items! £11.29 postage. Many of the calculators distributed by Muldivo retained their original names, but the ones below were re … This website shows my personal collection of Curta mechanical calculators, vintage electronic calculators, personal and small computers and other calculating devices. ), counters (Durant, Record, Hengstler, etc. You are bidding on a very rare Friden model SRW mechanical calculator.