YES, we now have lots of NEW BOXED sets, see HERE and HERE.

Welcome to the Slide Rule Universe! Original Artwork by: Larry Stewart, The Slide Rule Universe is a trademark of Sphere Research Corporation  IMPORTANT! Shipping Costs go UP significantly now each year, so please see full details in our FAQ. Download the classic K+E Pocket Slide Rule Selection guide below! Late CLICK for Front CLICK for Back Early CLICK for Front CLICK for Back  At the Slide Rule Universe you can buy slide rules of all kinds CLICK ON THE PICS BELOW to see the Main Categories: Just Scroll DOWN to see everything!

Https Secured Site Wide For Your Protection Sphere Research Corporation 3394 Sunnyside Rd. West Kelowna, BC, Canada, V1Z 2V4 Phone: +1 (250) 769-1834 A great source for test equipment, repairs, calibrations, useful metrology information, and of course, SLIDE RULES! Updated May 23, 2023 Click REFRESH on your browser if pages seem unchanged Click Here to see What's New!

PLEASE NOTE: All Slide Rule PRICES BELOW are in US$ Slide Rule Pins & Tie Clips Pickett New in the BOX NIB Rules   Circular Slide Rules   New In the BOX NIB Rules   Used Full Size Slide Rules   Cheap & Student Slide Rules   Exotic Slide Rules   Slide Rule Books   Pocket Slide Rules   Drawing Tools   Slide Rule Repair Parts   New Slide Rule Cases & Stands   + Plus, you can do all of these things:   LEARN to USE & CLEAN your slide rule, with lessons and manuals TOUR our vast slide rule maker / style ARCHIVES VISIT other sites & people on the web BUILD a slide rule from scratch, even a Log Log rule UNDERSTAND HOW + WHY a slide works SLIDE RULE SOFTWARE (What?) great free learning tools Got Some Questions? We have the answers! Please see our FAQ CAUTION! Slide Rule Collecting can be addictive! See this important product warning! Another Larry Stewart Original! ALL ABOUT SHIPPING + ORDERING You can order anything here just by picking up the phone, and calling (250) 769-1834 during normal office hours, 8:30AM to 4:30PM PST, OR, Email your order to Susan HERE. SHIPPING: Preferred and Alternate Methods CLICK for FULL DETAILS ON OUR FAQ Page. Rates are now changing rapidy, often with little notice to us, so all the data has been transferred to the single FAQ page for speedy updating. E-Mail Susan if you want a quote for shipping to other destinations, or for something heavy. Sorry, we can't safely send most individual small parts in a regular letter envelope, they get destroyed by the automated handling equipment. Sometimes we can ship very rugged parts in a small padded envelope by letter post. Ask Susan. If we have your valid data on file, you can just click on the ORDER email link to place an order and indicate your approval to bill, and we will do the rest. We keep your active information for ONE YEAR for your convenience. If this is the first time you have dealt with us, you can phone +1 (250) 769-1834 to supply the billing info, or send it by the email link, as you prefer. We accept VISA/MC, international money order, Paypal (to Susan@Okanagan.net), and bank wire transfer. Please note that there are transaction fees with Paypal and wire transfer payments, the wire transfer fee is frankly horrifying, $50. Sphere Research has been around since 1992, and does most of its business doing contract research and development for customers in everything from complex system controls and human factors to industrial automation. We also have odd corporate interests, like restoring test equipment, and of all things, investigating slide rules, the most fascinating of all engineering marvels... At this site, you can get detailed information and buy rules from manufacturers all over the world, including K+E (Keuffel + Esser), Pickett, POST, Hemmi, Sama and Etani, Gilson, Graphoplex, Dietzgen, Concise, Aristo, Shanghai/Flying Fish, Otis King, Sterling, Acu-Math, Diwa, Blundell, Faber-Castell, Nestler, Staedtler-Mars and more. We have collected data, rules and photographs from all over the world and with the help and research efforts of many people, put them together here for you in one (hopefully) easy to navigate location.

Over 1.3 Million visitors served! Wahoo... We have MUGS! Keep in mind, in 50 years, the computer you are using to view this webpage will be landfill, but your trusty slide rule will just be nicely broken in!      Our SRU Mascot      Notable Visitors: Joe Pasquale, Visitor 100,000! Chris Redding, Visitor 150,000! Kelley Durski, Visitor 200,000! Mike Yancey, Visitor 250,000! Mark Lukey, Visitor 300,000! Tommy Frandsen, Visitor 350,000! Mike Wei, Visitor 400,000! Michael Rowley, Visitor 500,000! Ron A. Knapp, Visitor 550,000! Charles F. Crizer Jr., Visitor 750,000! Richard Guy, Visitor 800,000! Steve Kay, Visitor 900,000! Sean R. Wilkinson, Visitor 950,000! Giovanni Breda, the 1 Millionth Visitor! Michele T. Mazzucato, Visitor 1,050,000! Benjamin Harrison Millard, Visitor 1,234,567! Visit our amazing document server when you have a chance. Everything from Quotes and SciFi to Business and Ethics. At the SLIDE RULE UNIVERSE, we have all kinds of information about slide rules (or sliderules, and sliderulers, if you prefer) including lessons, maker's archives, links and an on-line marketplace, spare parts page and even an auction. Other Places to go in the Slide Rule Universe, people to see.... Learn to operate and care for your slide rule with these on line manuals and directions. Learn what scales mean, how to use them and how to restore or keep your slide rules in good condition. Tour our extensive archives of slide rule manufacturers and models from all over the world. Find out who made what, and what became of them after they stopped making slide rules. See how slide rules survive today in the form of slide charts still made in the millions annually. Visit other slide rule places on the web with more slide rule data and information. From personal collections on line to (yes, it's really true) the international slide rule owners and collectors organization, the Oughtred Society. Nice things people have said about us in print and on TV, see the original articles. We always appreciate it! Visit our TEST EQUIPMENT site everything from Scopes, CRT's and DMM's to nixie tubes, HP and Tektronix spare parts. A little electronic something or another for everybody. NEED a new BOXED slide rule for school, graduation or for a holiday gift ? LOOK HERE for Picketts HERE for Other NIB rules HERE for inexpensive starter slide rules! Customs can be very unpredictable, so to avoid unhappy shipping delays, please order rules for gifts as early as possible. We will happily ship FedEx for overnight or second day delivery if you are in a hurry. E-mail us Got Questions? Just E-Mail Us !   Site Design & contents copyright 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021 by Walter Shawlee 2 & the ad hoc Godzilla Graphics Group. The Slide Rule Universe top banner artwork created by Larry Stewart. Return to Sphere's Home Page Want to buy a rule, but you live far away from us in Canada? Don't worry, we have shipped slide rules to: USA, UK, Germany, Greece, Ireland, Sweden, Italy, Brazil, Mexico, Norway, Switzerland, Peru, Chile, Singapore, Phillipines, Australia, New Zealand, Spain, Netherlands, Venezuela, and yes, actually to Antarctica!