Even the best slide rules sometimes broke. No longer! Nowadays, with most manufacturers long out of the slide rule business, repair parts for broken slide rules are pretty tough to come by. Technical Collectibles maintains a limited inventory of repair parts for slide rule users and collectors, sorted by manufacturer.
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Downloadable Manuals. Greg's Slide Rules. There are a number of manuals for slide rules here which are available for download. File 1 - aviat File 1 - hyperlog. File 1 - studiolog. File 1 - brun
The slide rule , also known colloquially in the United States as a slipstick ,   is a mechanical analog computer. The slide rule is used primarily for multiplication and division , and also for functions such as exponents , roots , logarithms , and trigonometry , but typically not for addition or subtraction. Though similar in name and appearance to a standard ruler , the slide rule is not meant to be used for measuring length or drawing straight lines. Slide rules exist in a diverse range of styles and generally appear in a linear or circular form with a standardized set of graduated markings scales essential to performing mathematical computations. Slide rules manufactured for specialized fields such as aviation or finance typically feature additional scales that aid in calculations particular to those fields.
Other Slide Rule dates are currently in development. Assistance in this effort will be appreciated. Please refer to the museum library and individual galleries as this page is being built. Example: St. Louis 12, Missouri.