Kijad's "Craigslist magic" guide to buying typewriters. u/pzags41 provided us an excellent writeup of all sorts of paper products and typewriter stationery
u/thesimplemachine provided a scanned version of the Typewriter Repair Manual by Howard Hutchison - it is now in the cloud. If you are looking for typewriter ribbons, Ribbons Unlimited has a great selection of high-quality ribbons in standard and non-standard colors. If you don't think you can repair it yourself, here is a comprehensive list of almost all known typewriter repair shops in the world. The Typewriter Wiki is a work in progress, and we need your help and support to finish it! If abused, users and this feature will be removed from the community.
Flair must be a specific typewriter machine or company. If you would like flair, please use the "Show my Flair on This Subreddit" and "edit" tab. We have a Discord Server!, come check it out! Sales posts and links to your own sales are not allowed, that content is only allowed at /r/Typewriter_Swap An appreciation for that primal hammer-against-paper feeling when you sling words onto a page.ĭid you break something? We might be able to fix it! Be sure to post photos / an exhaustive description of the problem! Here is a pictorial guide to help with the most common typewriter repairs.Īs per usual, always follow proper reddiquette in your submissions. Wikimedia Commons has media related to Friden.A subreddit for typewriters. Mountain View, California, USA: Computer History Museum. ^ "Friden EC-132 Electronic Calculator".^ "Friden EC-130 Electronic Calculator".He is responsible for the development of the first commercial electronic calculator, the Friden 130, which has been displayed at the Smithsonian. Bob holds over 80 patents awarded during his work as Director of RD for Friden, and Singer and as Senior Project Engineer at Xerox. ^ "1928–2012 Obituary Condolences Robert (Bob) Ragen".The Singer – Friden Research Center in Oakland, California, later moved to Palo Alto, California (1965 to 1970), was unable to develop a pocket-sized calculator to compete with the corresponding new Japanese products, such as the Busicom, based on Intel 4004 in 1971, Casio Mini and Sharp EL-805 in 1972. In 1965 the company was purchased by the Singer Corporation, but continued operation under the Friden brand name until 1974. The successor model EC-132, introduced in April 1965, added a square root function.
Examples of Friden & Singer calculators Friden SR-101 A mechanical calculator that can extract square roots. It was the first calculator to use reverse Polish notation (RPN), which eliminated the need for parentheses to specify the order of operations in complex calculations. and also in Japan, with some desktop models being made by Hitachi. The EC-130 sold for $2,200 (equivalent to $18,600 in 2020), or about three times the price of comparable electromechanical calculators of the time.
It used a magnetostrictive delay-line memory, to save money on expensive transistors. This machine had a 13-digit capacity and a 5-inch CRT display.
Friden eventually expanded into production of a few models of early transistorized computers.įriden introduced the first fully transistorized desktop electronic calculator, the model EC-130 in June 1963, designed by Robert "Bob" Appleby Ragen. Vtg Friden Calculator Computer Module Pbe 26003 2018109 Pcb Tape Adapter P007. Singer/friden Sps/spd/sfd/ju/fl Flexowriter Ribbon Lift Assy 10548042. The Flexowriter could be attached to Friden calculators and driven by paper tape to produce bills and other form letters which had names of customers and amounts of bills filled in automatically. Rare Friden Alcatel Hard Travel Case For Postal Meter W/neopost Power Pak Supply. This gave them the Flexowriter teleprinter, an electric typewriter capable of being used as part of unit record equipment developed in World War II for the Department of the Navy to automatically type "regret to inform you" letters to the survivors of fallen servicemen, the predecessor to modern computers. So to do matrix operations on a Friden calculator would take weeks to do. In 1957, Friden purchased the Commercial Controls Corporation of Rochester, New York. The Friden was a large mechanical machine, which did only addition, subtraction, multiplication, and division, and you had to use log tables and square root tables for your calculations.