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May 18th, 2013


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Sphere Research Coporation, CLICK to visit! Sphere Research Corporation
3394 Sunnyside Rd.
West Kelowna, BC, Canada V1Z 2V4
Phone: +1 (250) 769-1834
FAX:+1 (250) 769-4106

A great source for test equipment, repairs, calibrations, useful metrology information, and of course, SLIDE RULES!

EMAIL US!Want something? e-mail us!
Go to Our FAQOur FAQ !! Answers to all those questions.
Visit the Document Server!Visit our amazing document server. Quotes & SciFi to Ethics & Business.
Just SCROLL DOWN to see everything!
Click to See What's NEW...... Welcome to Sphere's Slide Rule Universe! OPEN 24/7, CLICK to visit the Marketplace! CLICKCLICK HERE
CLICKTo Visit The S/R Marketplace
   I'm in a HURRY! Show me all the: CLICKNIB Rules CLICKNIB Pickett Rules CLICKPocket Rules CLICKCircular Rules

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What's New On The Site?
CLICK to see the Manual preview!CLICK to see the Oughtred Society Slide Rule Reference Manual Preview!
BACK IN STOCK!
The Second Edition Oughtred Society Slide Rule Reference Manual
is in stock now,. Click on the logo above to see the details, and HERE to order your copy. Richly illustrated with 97 color photographs, it is suitable for everyone from new beginners to long time collectors. There are only 150 copies left, so don't miss out on a chance to get this incredible illustrated reference.

April 2007:
Looking for a Feild's (sometimes called Field's or Fields) Hydraulics Calculator, but just can't find one? We now have them in stock HERE!
























































































































































































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May 18th, 2013 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
CLICK to SEE!
The final Foo Auction has jus thad new rules added, NEW Hemmi sets and a very rare Vacuum Tube slide rule, have a look!

We will add new items continuously until the auction finishes, so visit often. This is the last auction, ends May 31st.
May 16th, 2013 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
This year, our 11th Annual Slide Rule Auction is for a very specific and personal purpose, to help our friend Foo fight the serious costs of treating Myeloma (cancer of the blood plasma cells).
Foo at work!

Many of you know Foo, and what a tireless booster of slide rules, and intrepid discoverer he was of lost troves of them where nobody thought to look. He has been a great friend to many of us in the slide rule world, so at the SRU, we are running auctions all through the month of May to help raise funds for his chemotherapy and bone marrow transplant. We have tons of goodies on the site, including 2 rare CHEMICAL Rules and this is the last auction, ends May 31st.
May 10th, 2013 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
The first May auction ENDS TONIGHT, 9PM, PST, get in there and find something cool!
Foo at work!
May 8th, 2013 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
This year, our 11th Annual Slide Rule Auction is for a very specific and personal purpose, to help our long time friend Foo fight the serious costs of treating Myeloma (cancer of the blood plasma cells).
Foo at work!

Added many new items, including FC 62/83N pocket rules, Pickett spare parts and a boxed POST 1461L pocket Versalog Set, have a look and do some good at the same time!
May 5th, 2013 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
This year, our 11th Annual Slide Rule Auction is for a very specific and personal purpose, to help our friend Foo fight the serious costs of treating Myeloma (cancer of the blood plasma cells).
Foo at work!

Many of you know Foo, and what a tireless booster of slide rules, and intrepid discoverer he was of lost troves of them where nobody thought to look. He has been a great friend to many of us in the slide rule world, so at the SRU, we are running auctions all through the month of May to help raise funds for his chemotherapy and bone marrow transplant. We have tons of goodies on the site, and more will go up EACH WEEK to help raise the funds he needs, And YES, you can just donate to this, there's a place for that. So, have a look, and help us with this worthwhile project!
November 23, 2012 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
CLICK to SEE!
More Goodies Added To The Auction!
Visit the 10th Annual Food Bank Slide Rule Auction!
November 20, 2012 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
CLICK to see!
The Auction is OPEN!
Our 10th Annual Food Bank Slide Rule Auction is NOW OPEN!

Check the page often to see regular additions!
Closes Friday, November 30th at 9PM PST.
November 16, 2012 MORE LOW COST TREATS!
CLICK TO SEE!
Just in, one bulk batch of new Pickett Model 80 Student rules. Our lowest cost new slide rule yet! Stock up while we have them.
September 20, 2012 NIFTY BACK TO SCHOOL TREATS!
ACUMATH
Model 400, CLICK To SEE!
Just in, one batch of factory packed Sterling/Acumath 400 rule sets, with instructions, and case!M

Good price, so stock up for September back to school!
July 16, 2012 SUMMER TREATS!
CLICK to SEE!
Just in, factory boxed Picket 140T Log Log Sets!

New in the box, complete with manual and case! Great higher end school sets with a powerful Log Log scale assortment. We have been out of these for a LONG TIME! Stock up for September back to school!
June 28, 2012 SUMMER TREATS!
Ricoh 105P Set, CLICK to see!
Just in, factory boxed Ricoh 105P Rules!

New in the box, complete with manual and case! Great desk sets to leave out for everyday use with cm and inch rulers added to the slide rue design.

RICOH 505LA, Click to SEE!
Found in our wayback machine, 3 More Sets!

Beautiful pocket bamboo slide rule sets!
June 11, 2012 SUMMER TREATS!
120ES, CLICK to SEE
Just in, another batch of ever-popular Pickett 120ES Student Rules!

New in the box, complete with manual and case!

CLICK to SEE
Just in, 2 more Giant 20 Inch Faber 4/98 Elektro Sets!

New sets, very hard to find these gigantic rules, especially in new condition!
June 2, 2012 SUMMER TREATS!
CLICK to see
Just in, New SKALA pocket rules with leather cases!

Beautiful pocket rules from POLAND, first time on our site!
May 20, 2012 New Boxed versalog 2, CLICK to see
Just in, a NEW, BOXED Teledyne Post Versalog II!

Also the matching NEW BOXED Pocket versalog II HERE!
May 20, 2012 K+E Sets, CLICK to see!
Just in, a rare batch of NEW, BOXED K+E Full Sized Sets!

We got some final inventory from a stationary store, lost for decades, just a few different sets, but YES, there's two Cooke Radio rules!!
May 20, 2012 K+E Pocket Sets, CLICK to see!
Just in, a rare batch of NEW, BOXED K+E Pocket Sized Sets!

We got some final inventory from a stationary store, lost for decades, there are some very nice pocket sets too!!
May 17, 2012 CLICK to see!
Take a huge sale discount of NEW boxed sets of Pickett N1010SLT rules that have scruffy boxes.

We have one batch of them, when they are gone, that's it! Includes Manual, Warranty card, and Leather Case!
Check the bottom of the page for the sale sets!
May 3, 2012 CLICK to see!
The Custom Circular Slide Rule Coins are Here!

The great design from Technetium and Pale Horse Designs is now in stock at the SRU. We have made some color changes to improve the visibility and appearance, and they include custom presentation cases. Just 40 of each type available, so don't miss your chance to get one of these beauties!
March 26, 2012 CLICK for a BIGGER PIC!
New Boxed N902ES Sets

These are great student Trig rules, the manual is built into the rule body!
Boxed kits with manuals, cases and even the original Warranty Certificate!
Just a few, so don't miss a chance to get one for your favorite math student.
December 1, 2011 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
CLICK to see!
The Auction is CLOSED!
Our 9th Annual Food Bank Slide Rule Auction is NOW CLOSED!

Check the page to see if you are a winner!
November 24, 2011 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
CLICK to see!
Just ONE WEEK LEFT!
Our 9th Annual Food Bank Slide Rule Auction is NOW OPEN!

Some amazing goodies, including a 10 POUND
mystery box of slide rules.
November 15, 2011 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
CLICK to see!
Our 9th Annual Food Bank Slide Rule Auction is NOW OPEN!

Just added a classic wood body Stanley/Edwardes' Topograhical rule.
November 14, 2011 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
CLICK to SEE!
Our 9th Annual Food Bank Slide Rule Auction is NOW OPEN!

100% of all bids goes directly to our local food banks, no overhead. Have a look! All kinds of auction goodies, more coming each day! YES, the fabulous mystery boxes are back again this year...A whopping TEN POUND BOX! And, yes, a Final Deci-lon 5 Pocket rule, the most elusive of all K+E rules!
November 4, 2011 CLICK to SEE
Pickett 120T Sets

24 MINT sets, great starter rules for those math kids on your Christmas list!
September 23, 2011 CLICK to SEE!
Hope/Concise 740 Metric Convert

Still intimidated by centimeters and liters? Here's a great pocket sized converter that does temperature, area, weight, length, volume and area!
September 1, 2011 CLICK to SEE!!
Musicgraph 100 Musical Rules

Great rules for musicians and composers for transposing keys, creating harmonies, etc. Very hard to find, just a few sets available!
August 31, 2011 CLICK to see!
YES, we now have full color SRC Coffee Mugs!

11 ounces of glorious ceramic full-color logo goodness, ideal for parking on your desk filled with you favorite beverage, pencils, or pocket slide rules. Just a few, so grab while we have 'em. Wow, first we had free stuff, now mugs.
August 24, 2011 CLICK to SEE!CLICK to see!
Totally FREE stuff! Yes, it's FREE.!

Buy something of the right minimum amount and get something free. Just in time for school, now what could possibly be cooler than that?
August 24, 2011 CLICK to SEE!
Big batch of STUDY 500 student rules!

Great new sets from Unique, fully washable, and complete with instructions and case!
August 15, 2011 Hemmi 266, CLICK to SEE!
The Most requested Hemmi set, the 266 Electronics Rule!

1 MINT new set, it took 2 years to find it!!
August 15, 2011 CLICK To See!
More Incredible Boxed FC 20 inch rule sets!

3 MINT new sets, an amazing find!!
July 25, 2011 SEARCH PROBLEMS!
The new search script from Google has been a real problem, it DOES NOT render correctly in IE9 (produces a huge blank light blue field), but works correctly in everything else. You may have noticed this odd blank problem recently on many ebay listings as well. There is simply no fix for it, so we have removed it from everywhere but the BOTTOM of the gateway page, so it does not destroy the page view. You may still have to turn on scripts each time you visit that page in IE (wow, what a freature...) This is VERY unfortunate, but there it is. Our apologies for any weird page problems it has created for you. Firefox or Chrome are certainly suggested by us as far more suitable browsers. Don't forget control-F within your browser searches the page you are on!
July 5, 2011 CLICK to visit!
Profit Dials and Date Finders Now in Stock!

We can now supply these very popular business wheels from stock,
so have a look!
June 21, 2011 CLICK HERE to see pics from our trip to Iceland, Sweden and Denmark, more to come soon.
May 23, 2011 Walter & Susan, your hosts at The Slide Rule Universe
WE were closed for summer vacation and our 40th anniversary until monday June 13th, we're back now!.
May 23, 2011 152/81, CLICK to SEE!
FC 111/22, CLICK to SEE!

MINT Faber Castell Sets!
152/81 and 111/22

Just arrived, large quantity!
more new, MINT condition FC sets, for commerce and high end student use, we were out of stock for a long time, but just got in one last batch from old stock left in the UK. Don't miss these sets! We have no more sources for these.
May 23, 2011 1447, CLICK for bigger PIC!
Great condition classic Post 1447 Sets!

Just arrived, 6 sets !
One of the most popular bamboo rules from Hemmi and Post, here's a nice batch of late production rules.
May 11, 2011 Nestler 0123, CLICK to SEE!
Mint NIB Nestler 0123 Pocket Sets!

Just arrived, 45 sets !
Great starter pocket rules, ideal for gifts.
May 2, 2011 Faber Castell 2/83N Sets!
Just 2 NEW MINT 2/83N sets !

The global big Kahuna of slide rules, just 2 more mint sets (complete), from factory storage, they won't last long...
April 22, 2011 CLICK to SEE!
NEW Hemmi 34RK Pocket Sets in factory boxes !

Beautiful Hemmi pocket bamboo sets with leather cases, factory english manuals and boxes. We don't get many sets like this.
March 28, 2011 CLICK to SEE!
NEW K+E K12 Prep Sets in Stock!

We get very few NEW K+E sets, these are very nice, and ideal for a first or student rule. Enjoy them while we have stock.
January 5, 2011
NOW IN STOCK! CLICK to see!NOW IN STOCK! CLICK to see!NOW IN STOCK! CLICK to see!
NOW BACK IN STOCK!

We now have 190 copies in stock of the new 2nd edition in stock, they won't last long!
January 2, 2011
FAQ
Please see the new shipping info for 2011!

Postal rates have skyrocketed this year due to fuel rates and other charges, please see all the available options. This is our first fee increase in 4 years.
November 3, 2010
CLICK to see!
Just Arrived! The impossible to find Sama and Etani Model 600CE Chemical Engineering rules with Periodic Tables!

Also all the other popular Sama and Etani models back in stock, from Model 90's to 700MM's. Great low cost Christmas Gifts!
October 31, 2010
Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Our 8th Annual Food Bank Slide Rule Auction ENDS TONIGHT, 9PM PST!

Your last chance for 2010, so don't miss out!!
October 29, 2010
Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Our 8th Annual Food Bank Slide Rule Auction is OPEN!

Just added more MYSTERY BOXES, one for cases, one for starter rules, so have a look!
Just 2 Days Left!
October 28, 2010 Wondering what happened to those new Oughtred Society Slide Rule Reference Manuals? The second edition was supposed to ship in September, but it looks like it will now be November at the earliest, due to color printing issues. The proof quality was not up to standards, so the printer had to do it over, and that's pushed us back a while. Don't despair, they ARE coming.
October 17, 2010 Aristo Project Set, CLICK to see!
Nestler Pocket Polymath Duples, CLICK to see!
Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Our 8th Annual Food Bank Slide Rule Auction is OPEN!

Just added more books, a new MINT Aristo Projection rule, a new MINT Pocket Polymath Duplex, so have a look!
October 15, 2010 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Our 8th Annual Food Bank Slide Rule Auction is OPEN!

Just added a beautiful 71 year old leather bound K+E 38th Edition General Catalog to the auction, have a look!
October 14, 2010 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Our 8th Annual Food Bank Slide Rule Auction is OPEN!

100% of all bids goes directly to our local food banks, no overhead. Have a look! All kinds of auction goodies, more coming each day! YES, the fabulous mystery boxes are back again this year...
September 1, 2010 Pickett 120ES, CLICK to see!
Great Cheap Student Rules!

Just in time for school, good quality, low priced student rules, wahoo!
August 9, 2010 CLICK to see!CLICK to see!CLICK to see!
CLICK to see!
Great New Universal Slide Rule Software!

An outstanding package from Tim Vandenburg that models, teaches and customizes working slide rules right on your PC, and it's FREE! It makes a fantastic classroom teaching aid with a video projector hooked to a laptop. Have a look!
August 5, 2010 CLICK to SEE!
Very handy Fractional Inch to Metric and Decimal calculators!

We get many requests for rules that deal with fractions, this one is incredibly handy for machine shop and drawing work, have a look!
July 26, 2010 CLICK to SEE!
Got 3 More New Boxed N600ES Pocket Rule sets!

We had hundreds of these, and sold out. We just got a few more, in mint condition, don't miss this chance to get a super-compact Log Log pocket rule set from Pickett with a great leather clip case. Beautifully display boxed, a fantastic gift.
July 26, 2010 CLICK to SEE!
COMING SOON! The OS Slide Rule Reference Manual, SECOND EDITION!!

The 1000 run first edition SOLD OUT, and we have booked half of the production run for the Second Edition, which will only be 400 copies. DON'T MISS OUT, this is a wonderful full color book, and the second edition will have all the updates and corrections in it. Email Susan to reserve a copy, because when these few are gone, it's doubtful the OS will ever run a third edition, so this will be your LAST chance to get this one-of-a kind wonderful reference work.
May 13, 2010 CLICK To See!
4 Incredible Boxed FC 20 inch rule sets!

3 MINT new sets, one new set that has been opened, you won't see anything like this again!! An amazing deal on all 4 sets, have a look...
May 11, 2010 CLICK to SEE!
CLICK to SEE!
Nifty N700T Pickett USAF Aerial Photography Pickett Rules

You probably have no aerial pictures to re-size,
but they make dandy Pocket Trig Rules,
plus they have a handy built-in data table on the case!
May 4, 2010 Giovanni Breda
WAHOO!
Giovanni Breda was our 1,000,000th gateway page visitor!

Congratulations from the Slide Rule Universe,
April 5, 2010 CLICK to see!
Just added two Pocket Versalog 1461 sets,
one green, one blue COS scale.

Hard to find in good condition like these, both rules and cases!
April 3, 2010 Sama and Etani 600ST!, CLICK to see!
Just got 2 more famous Science Table Sama and Etani rules,
with Periodic Tables.

We have real trouble finding and keeping these in stock,
these are in great condition!
April 3, 2010 Pocket Addiators, CLICK to see!
A big lot of NEW Faber Castell Pocket rules, 62/83N, 67/54Rb Addiators, 63/82 and 63/83, all great sets!

These are all hard to find, we have a nice selection for you to choose from including addiators, and green brace 63 types!
March 24, 2010 CLICK to see!
We finally managed to track down another Pickett 104C Profit Calculator!

Still incredibly popular in the business world,
but wickedly hard to find.
have a look!
February 16, 2010 FC 167/87 CLICK to see!
FC 163/81 CLICK to see!
Big discount on new Faber 167/87 and 163/81 Pocket Rule Sets!

We managed to buy dozens of these great little rules, and dropped our cost dramatically, so we are passing the savings on to you,
have a look!
February 16, 2010 Hemmi 257 Chemical Rule!
One of the rarest of all Hemmi rules!

This is the first release Hemmi Chemical rule, complete with the original Hemmi manual and a new Sphere case, don't miss this amazing set! Just 1 available!
December 27, 2009 FC 167/87 CLICK to see!
FC 163/81 CLICK to see!
More new Faber Pocket Rule Sets!

Everybody asks for pocket rules, but they are getting harder and harder for us to find. Here's a nice selection of NEW FC pocket rules!
December 1, 2009 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Our Annual Food Bank Slide Rule Auction is CLOSED!

Our thanks to everyone that contributed items and bid, our local food banks thank you!
November 30, 2009 62/83N, CLICK to SEE!
Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Our Annual Food Bank Slide Rule Auction is OPEN! Ends tonight at 9PM, PST, we just added a brand NEW MINT FC 62/83N, the wahoo pocket rule of all time, don't miss it!

Just a few hours left to bid, don't miss these great items!
November 26, 2009 CLICK to see The Oughtred Society Slide Rule Reference Manual
CLICK to see!
In stock for Christmas! All the Oughtred society reference books, including the new Logarithmic Logic of Music, Slide Rule Reference Manual, and K+E Salisbury products Division

All of these are getting VERY scarce, so grab an original copy while you can, it doesn't look as if any reprints will be made by the OS. Sadly, we can't get any more when these last few are gone.
November 25, 2009 Pickett Spare Parts, CLICK to SEE!
Fowler Universal, CLICK to see
Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Our Annual Food Bank Slide Rule Auction is OPEN!

Just added, a rare assortment of Pickett spare parts, and a beautiful Fowler Universal Calculator!
November 19, 2009 Aristo Projection set, CLICK to see!
Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Our Annual Food Bank Slide Rule Auction is OPEN!

Just added, a fantastic projection set from German slide rule maker Aristo! Have a look! All kinds of auction goodies, more coming each day! YES, the fabulous mystery boxes are back this year...
November 11, 2009 Blundell 808, CLICK for bigger PIC!
Just arrived, Blundell Harling 808 Accountant's Rule Sets

Fascinating rules from the UK with commerce scales and a great date finder scale set.
October 20, 2009 CLICK to SEE!
Just arrived, 2 good overhauled K+E 68-1130 Pocket Decilon sets.

Everybody asks for this rule, and it's wickedly hard to find good ones, so please take advantage of these while we have them. A great Christmas item for that ardent rulehead.
October 7, 2009 CLICK for bigger PIC!
2 FC custom Esso Viscosity Rule sets!

Pretty much the strangest sets I have ever seen, but if you need to do oil viscosity calculations at both celsuis and farenehit temperatures, in centistokes, then this is your rule!
October 2, 2009 Otis King Model K, CLICK to see!
2 Classic boxed Otis King Model K rule sets!

Outstanding condition used sets, complete with boxes and manuals. hard to find in this condition!
September 27, 2009 FC 111/22, CLICK to SEE!
3 New Display Cased FC 111/22 business rule sets!

Very unusual business rules, in complete, new display cased mint sets with factory manuals. Wow!
July 15, 2009 CLICK to SEE!
2 New Boxed Nestler 0130 Duplex Pocket rules!

Powerful and beautifully designed pocket rules, in complete, new boxed sets with factory manuals. Wow!
July 2, 2009 CLICK to SEE!
5 New Hemmi Duplex Cursors!

Fits Hemmi 255-266 duplex rules, plus Versalog and Versalog 2 rules
July 1, 2009 CLICK to SEE!
12 New Logarex (Koh-I-Noor) 27607-I Log Log
Studio Duplex sets just arrived!

Beautiful mint sets complete with english manuals!
June 19, 2009 New Stands, CLICK to see!
New wider acrylic display stands now in!

More stock of the small stands, and a new larger type now in stock, plus we got a better break on a larger buy, so the price is reduced!
June 10, 2009 FC 1/98 Sets, CLICK to see!
FC 1/54 Sets, CLICK  to SEE!
NEW In Box MINT Faber Castell 1/54 Darmstadt and 1/98 Elektro Sets!

Two of FC's most interesting classic rule designs, with edge, inside body and conventional scales. AND ON SALE!
June 9, 2009 CLICK to SEE!
NEW In Box Pickett N3PES Set!

We see very few of these sets, this is complete with pocket clip case, manual and box.
June 6, 2009 Huge Shipment just arrived, new rules every day!
Hemmi 255D, CLICK to SEE!
Hemmi 269 Set, CLICK to SEE!
NEW In Box Complete Hemmi 255D Hyperbolic
and 269 Stadia/Civil Engineering Sets! Also New Hemmi 80K electrical rules and a 130W set.

Here's some advanced rules you just don't see every day in MINT condition....
June 5, 2009 Huge Shipment just arrived, new rules every day!
CLICK to SEE
NEW In Box Complete Staedtler 544 LLAV Projection Rule Systems!

Beautiful and uncommon high end educational sets!
CLICK to SEE!
Plus some cute little mint Hemmi P33/SS Pocket rules!
May 28, 2009 Huge Shipment just arrived, new rules every day!
CLICK to SEE!
NEW In Box Hemmi 149A Pocket Rule Sets!

Beautiful lightweight bamboo pocket rules!
May 26, 2009 Huge Shipment just arrived, new rules every day!
CLICK to SEE!
NEW In Box Complete Faber Castell 310/87 and 310/52 Projection Rule Systems!

Very uncommon high end educational sets!
Hemmi 259D, CLICK to SEE!
MINT, NEW In Box Complete Hemmi 259D Duplex Rule Sets!

Exceptionally nice sets, but only 3!
May 23, 2009 Huge Shipment just arrived, new rules every day!
N3T Boxed Set, CLICK to SEE!
NEW In Box Complete Pickett N3T Set!

Hard to find high end set!
May 20, 2009 Huge Shipment just arrived, new rules every day!
CLICK to SEE!
NEW In Box MINT Pickett N525ES Stat Sets!

Beautiful new boxed sets of a rare Pickett rule!
May 9, 2009 CLICK to see!
CLICK to SEE!
NEW In Box Staedtler Mars and Aristo Sets!

Beautiful new European rule boxed sets complete with English Instructions!
January 11, 2009 CLICK to SEE!
CLICK to see!
Acrylic Slide Rule Display Stands

A great looking way to display your favorite rules.
December 8, 2008 Norma Grafia 190, CLICK for bigger PIC!
Beautiful 8 inch Norma Grafia 190 Circulars, just in time for Christmas!

A striking but simple german circular, a nice addition for any graphic artist or S/R collector.
December 5, 2008 N902K-ES, to see!
Teaching Sets, just in time for Christmas!

One of Pickett's best self-instruction sets, the N902KES,
just got in a small batch of new ones!
November 24, 2008 Nestler Matho 260, CLICK to see!
Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Our Annual Food Bank Slide Rule Auction is OPEN!

Just added, a solar powered calculator from German slide rule maker Nestler! Have a look!
November 18, 2008 CLICK to SEE!
CLICK to SEE!
Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Our Annual Food Bank Slide Rule Auction is OPEN!

Have some fun, do some good at the same time, and as always, 100% of the bid is donated to the local food banks.
November 8, 2008 CLICK to SEE!
A Big Batch of Pickett N500ES and N500T New Boxed Sets!

A nice batch of boxed sets with leather cases and manuals, one of the most popular Log Log rules from Pickett, just in time for Christmas!
November 5, 2008 CLICK to SEE!
Yet More interesting Circulars!

A Beautiful Norma Technikus 100 just added.
November 2, 2008 CLICK SEE!
More interesting Circulars!
Fullerton, Amana and SIC just added.
November 1, 2008 CLICK to see!
Lots of pre-holiday sale Items
, CHECK EVERY SECTION for deals, plus dozens of NEW and STUDENT rules added.
We even have more of those incredibly cool Pickett
N902KES training kits!
September 28, 2008 Fullerton 1458, Click to see
Just arrived, 1458 Fullerton/Concise log log circulars,
new with manuals and cases

We don't get many new larger circular sets, these are very nice examples with log log and extended trig capability.
August 27, 2008 Click to see
Just arrived, beautiful condition K+E Transit,
complete with case and accessories!

We have had several requests for K+E optical and survey instruments, here's a great example!
August 1, 2008 CLICK to see!
Just arrived, NIB Teledyne/Post full sized 142X/P26X sets!

More new boxed Teledyne/Post rules!
July 23, 2008 Click to SEE!
Just arrived, NIB Post Pocket Rule sets, including a
1461 Versalog 2 set!

More new boxed Teledyne/Post rules!
July 19, 2008 Click to SEE!
Just arrived, NIB Post Versatrig 1450 set, and Mint new FC2/83N sets, plus two more Indian Deeva 720 duplex rules!

A great assortment of New boxed rules, from all over the world, plus more to follow soon in the pocket section!
May 15, 2008 Flying Fish 1200, CLICK to SEE!
CLICK to SEE!
Just arrived, K+E 68-1130 Pocket Decilon, and Flying Fish 1200 Pocket Vector Duplex rules.

Also new and used FC 2/83N sets, all with German docs (good prices), a mint Hemmi 257 Chemical rule, plus some Post pocket Versalogs (1461). Will post pics and listings as soon as I can, or you can EMAIL ME for quicker info. Many fabulous treats, but just small quantities, so don't miss out.
April 29, 2008 S 889, CLICK to SEE!
New C-Thru Log Log Duplex Sets

This a great student rule, in a low cost format. There aren't many rules from C-Thru, this is their nicest model.
April 18, 2008 CLICK to SEE!
New Gilson Binary Set

This a hard rule to find in good condition, this one is NEW and a whopping 8 inches in diameter, one of the largest circulars made.
April 17, 2008 1003 Set, CLICK to see
New Shanghai/Flying Fish sets, including Stadia
and advanced Log Log rules

These are very interesting models, and we now have a good assortment of new FF sets, so have a look!
April 8, 2008 CLICK to see!
New Sama and Etani model 600 Periodic Table Rules

We get asked for these all the time, but it's taken us a year to find these new sets, don't miss them.
April 4, 2008 N16ES, CLICK to see!
Great condition Pickett N3ES and hard to find N16ES
electronic sets, just arrived!


Click to SEE!
More Versalog II sets, in excellent condition, plus K+E 4181-3 and more!
April 3, 2008 CLICK to SEE!
New MINT condition Faber Castell 2/83N sets, just arrived

We get few new 2/83N sets, and VERY few in this condition,
complete with english accessories, have a look!

CLICK  to SEE!
Mega Chord Guitar Chord Duplex Rules, BACK IN STOCK!

Beautifully made color-coded duplex rules for generating over 7500 quick guitar chords.
March 14, 2008 CLICK to SEE!
New K+E N4058W Beginner's Slide Rules, just arrived

WE get VERY FEW new K+E sets,
and these have excellent beginner's manuals.
March 9, 2008 Faber Castell 62/82N, CLICK to see!
More Faber Castell Pocket Rules Just arrived

62/ and 63/ series sets.
Flying Fish 1004, CLICK SEE!
New Flying Fish slide rules from China!

Amazing rules with rich scale sets including Hyperbolic Scales!
March 4, 2008 120C-T, CLICK to SEE!
160C-T, CLICK to SEE!
120ES, CLICK to SEE!
Another big lot of NEW Pickett Student rules in the CHEAP Section just arrived!

Pickett 120T, 120ES and 160T sets.
March 3, 2008 FC 369, CLICK to see!
Some classic pocket rules from long ago, and some brand new ones!

52/82, CLICK to see!
More new, boxed full-size sets just arrived!
February 29, 2008 Radiac Rule, CLICK to SEE!
Yet more BH Radiac Rules, classic Cold War rules!
February 23, 2008 Radiac Rule, CLICK to SEE!
BH Radiac Rules, classic Cold War rules!

Many goodies added to the site today, including some NIB RULES
December 6, 2007 CLICK for bigger PIC!
K+E Salisbury Products Division Slide Rules

The new Oughtred Society book by Joe Soper, fascinating reading about K+E.
December 6, 2007 CLICK for bigger PIC!
Primary Slide Rules

Tough as nails (and fully washable) slide rules to teach addition/subtraction and positive and negative numbers to those early math students! How completely cool and overdue is this ??
December 1, 2007 CLICK  to SEE!
Mega Chord Guitar Chord Duplex Rules

Beautifully made color-coded duplex rules for generating over 7500 quick guitar chords. We have had many requests for these, and I finally found some nice ones.
November 28, 2007 Binary, CLICK to see!Aviat, CLICK to see!
Aristo's Beautiful Aviat 615 Pilot's Rule
and the famous Gilson Binary

2 great Aviat examples back in stock in time for that hard-to-please pilot on your christmas list. This is one of the finest slide rules made for flying, and beautiful to look at, a double bonus. Plus, a complete 8 inch giant Gilson Binary set with Manual.
November 12, 2007 4031, CLICK for bigger PIC!
1920's 5 inch K+E 4031 Pocket Rule

The smallest K+E wood rule ever made, from very long ago.
Still works perfectly.
November 7, 2007 CLICK to See!
More Interesting Pocket Rules

Have a look, more being added all week.
CLICK to See!
And many sets added to the Full sized Used/Overhauled section

Susan has been after me to whittle down the huge pile in the overhaul shop, so I did, and now you can get your favorite rules from long ago, all restored to their original condition.
Hemmi 259D, CLICK to See!
And, more new Hemmi Duplex Rules

Wow, we have been busy this week...Even some Hyperbolic sets.
October 30, 2007 Radiac Rule, CLICK to See!

New Blundell Harling Radiac No. 1 Mk2 Radiation Rules

Just the thing for those unexpected circumstances, and a fascianting rule to boot.
October 29, 2007 CLICK to See!

New Nestler Elemath RS Sets

Just got a new batch of mint Nestler sets, complete with cases and manuals. Beautiful 17 scale sets, just in time for Christmas!
October 17, 2007 Go to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction PageGo to the Auction Page
Annual Food Bank Auction NOW OPEN!

All sorts of interesting goodies, including some genuine
Robby the Robot SRU Mascots! Will close November 15th, in plenty of time to ship for Christmas.
October 17, 2007

New Boxed N600ES Pocket Rule and 904T Decimal Keeper Sets

Just got a new batch of mint N600ES display boxed pocket rule sets, and one 904T decimal keeper set, have a look, the 904T won't last long!
September 18, 2007 Staedtler 544A, CLICK to SEE!
New Boxed Staedtler-Mars 544 Series Sets

Beautiful trademark Blue/White rules from Staedtler Mars in Germany, mint condition boxed sets, don't miss these, there are only a few of them.
September 14, 2007 CLICK to See!
CLICK to See!
New Logarex full sized 27403-III Darmstadt and 27602-II Log Log Sets

Two very nice full sized sets from Logarex, the full-sized match to the pocket 27205, and a very powerful Darmstadt with unusual construction. Over 125 new rule sets being added this week, also check the Cheap and Pocket pages!
September 13, 2007 CLICK to See!
CLICK to See!
NIB Nestler + FC Special Purpose Business and Electro Sets

A great assortment of special purpose rules, all fresh in factory boxes! Some very nice sets, seldom seen in North America. Over 125 new rule sets being added this week, also check the Cheap and Pocket pages!
September 12, 2007 CLICK to See
CLICK to See!
Pickett 120, 121, 125 and 140 new boxed sets, plus MINT boxed Aristo 0901 Sets

A huge choice of starter and student rules to pick from, many have been out of stock a long time, so don't miss this chance to get that perfect christmas set you wanted for a new learner! Over 125 new rule sets being added this week, also check the NIB and Pocket pages!
September 12, 2007 Logarex 27205, CLICK for bigger PIC!
Logarex 27205 Pocket Duplex Log Log Rules

These beautiful Czech pocket rules are very powerful, and hard to find. We finally got some back in stock, fresh from Europe. Over 125 new rule sets being added this week, check the NIB and Cheap pages!
September 12, 2007 CLICK to See!
CLICK to See!
Faber Castell 1/54 and Nestler 0210 Classic Rule Sets plus new FC 152/81 Novo Mentor Sets

These elegant wood body rules from Faber Castell and Nestler are mechanical marvels with their complex cursors, edge scales and beautiful finish. Brand new sets, finally back in stock, fresh from Europe. PLus, great late-production plastic body Novo-Mentor mint sets from Faber. Over 125 new rule sets being added this week, check the Cheap and Pocket pages!
September 9, 2007 CLICK tp SEE!
K+E 68-1565 GP-12 Boxed Rule Set

We don't get many K+E boxed sets, this is one of my faves from K+E, the very elegant GP-12, which looks like a deci-lon, but made in plastic. Very neat rule, also other additions to the same page!
August 16, 2007 CLICK to see!
Aristo 0969 Studio Log Boxed Set

A wonderful high end set, seldom seen in North America
July 18, 2007 FC 2/83 Dual Cursor Set, CLICK to see!
A DUAL-CURSOR 2/83 Novo-Duplex display cased set!

A great looking FC set with dual cursors, a great addition to any FC collection.
July 9, 2007 N3ES-M, Click  to see!
A Genuine factory N3ES-M with magnifier and fitted case!

An uncommon cat, with a massive acrylic barrel magnifier, just what every pickett fan REALLY needs. Just one, when it's gone, that's it.
July 9, 2007 Model 400 T, CLICK tp SEE!
New Acumath rule sets!

Some very unusual YELLOW Acumath rules, plus standard white 400 sets, more low cost first rules.
July 9, 2007 Pickett 101C, CLICK to see!
New, still sealed Pickett 101C Circular Set

Fantastic unused 101C set, complete with all the accessories, have a look!
July 9, 2007 N120K-T Set, Click to SEE!
New, Pickett 120T Training Sets

New N120K-T self-teaching sets, complete with all the accessories, just 2 available, great for that first student rule! We get asked for these all the time, so here's two more from our storage vault, all we had left.
June 28, 2007 CLICK to see!
K+E like new boxed Decilon 10 Set

Fantastic unused K+E 68-1100 set, complete with all the accessories, plus a great 68-1210 Log Log Duplex Deci-trig set with a new leather case, have a look!
June 27, 2007 N4053-5, CLICK to see!
K+E N4053-5, 20 inch Rule

We don't get many 20 inch rules in good condition, here's a real classic beauty from K+E in excellent shape.
May 24, 2007 Hemmi 255D, CLICK to see!
New Hemmi 255D Hyperbolic boxed sets!
Mint condition sets, the Hemmi 255D Hyperbolic has an especially interesting scle set, just a few available.
Also, let me know how you like the new look for the site, I have been doing a bit of clean up as time permits. Email me HERE.
May 10, 2007 Pickett N803ES Boxed sets, CLICK to see!
Finally Back again, new Pickett N803ES boxed sets!
Don't miss your chance for these new log log sets in the classic eye saver yellow styling.
CLICK to see the 1768P Sets!
A batch of brand new Dietzgen 1768P rules just arrived!
An exceptionally nice student rule in a unique white/green body style.
April 25, 2007 CLICK to SEE!
Back again, K+E's famous pocket Deci-lon (68-1130) set, with a brand new case!
Have a look, we don't get these very often! Also a dozen brand new boxed Dietzgen 1771 Pocket Redi-Rules on the same page.
April 12, 2007 Feild's Hydraulics Calculator, CLICK to see!
We have just gotten a batch of Feilds (sometimes called Field's of Fields) Hydraulics Calculators
The classic Perrygraf for solving gravity flow in pipes, finally in stock, and BRAND NEW!
New-In-The-Box Pickett Slide RulesNew-In-The-Box Pickett Slide RulesNew-In-The-Box Pickett Slide Rules
Also, lots of NEW boxed Pickett low cost student and high end pocket and full sized rules. Have a look!
April 10, 2007 Post 1472 Indicator
We have just gotten 6 new, mint condition Post 1472 cursors that fit all the 4" miniature bamboo pocket rules, like the 1441, 32, etc.
These fall off in a heartbeat, and leave that beautiful little rule sad and unusable, here's your chance to fix that problem!
February 26, 2007 CLICK to see!
CLICK to see!
We have just gotten 10 new, mint condition
Hope 530 Duplex Log Log Sets
have a look!

These are perfect sets, in mint, pristine condition, complete with English manuals. Excellent value on a high quality duplex log log set that looks like it just came out of the factory this week.
February 22, 2007 CLICK to see!
We have just gotten 8 more new, mint condition FC 2/83N
display cased sets, have a look!

These are amazing sets, they have been in storage since they were manufactured, a rare opportunity to get this wonderful rule in factory new, mint condition. These came with factory english manuals and english rulers! These are the last new batch we can get from Germany that were in storage, no more are available after these.
PLUS! we also got a few new boxed 62/83N Pocket sets!
November 21, 2006 CLICK to SEE!CLICK to SEE!
Just in! 100 NEW MINT Sama and Etani pocket circular rule sets!

Just in time for that SR person on your christmas list!
Model 90 and Model 200EE electronic rules, very useful!
November 16, 2006 CLICK to SEE!
Just in! Beautiful new FC 163/81 pocket rule sets!

Just in time for that SR person on your christmas list!
We get very few new FC pocket sets, don't miss these!
October 30/31, 2006 CLICK to see the K+E 100th anniversary book!
The K+E 100th anniversary book, now available for free download!

Another treasure from the recent find at AZON, the 1967 100th anniversary history of K+E, learn what K+E was involved in besides slide rules. Now available in both JPG and PDF formats!
October 25, 2006 CLICK to SEE!
New boxed K+E 68-1210 Sets!

Amazing presentation sets from the recent find at AZON, the last known inventory from K+E! Don't miss these! We have not had any new sets from K+E for a long time, these are exceptionally nice.
October 1, 2006 0903 Learning Pack, CLICK to SEE!
Aristo 0903 Learning Packs!

Months of work and preparation finally produces low cost student training kits to learn everything about slide rules! Limited quantity available, just in time for Christmas. Not many OS manuals left, don't miss your chance.
October 1, 2006 CLICK to see!
Direct from our Storage Vault, all kinds of Hemmi NIB full sized Rules!

Some interesting new Hemmi/Teledyne Post beauties for your consideration.
September 30, 2006 Hemmi Pocket Rules, CLICK to SEE!
Direct from our Storage Vault, all kinds of Hemmi Pocket Rules!

All kinds of interesting and uncommon Hemmi pocket rules, all new in the box!
September 24, 2006 Pickett 105 Pocket Profit Calculator, CLICK to see!Fullerton 1452/Concise 260, CLICK to see!
Just got in the highly requested Pickett 105C Pocket Profit Calculators
and Fullerton/Concise minutes/seconds trig circulars

Won't last long, these are very hard to find.
September 3, 2006 CLICK to see!
A large quantity of new Aristo Studio 868 pocket rules just arrived, complete with new SRC designed cases!
July 28, 2006 Graphoplex 692b, CLICK to see!

Lots of new boxed pocket rules, from FC, Graphoplex & Aristo

Some interesting and uncommon sets just arrived, have a look!
July 23, 2006 CLICK to see!
Sphere's new custom slide rule cases now back in stock!!

Took a while, but we have another big batch of the universal duplex cases back in stock, a great way to protect everything from a Versalog to a K+E 4081-3.
June 27, 2006 FC Pen Set, CLICK for bigger PIC!
Beautiful Limited Edition FC Wood Body Pen/Pencil Sets

A great gift for that Faber-Castell fan, matching wood body drawing tools.
April 3, 2006 Click to see!
Big batch of MINT, new FC 8/10 Circulars arrived, both styles!!

We finally got a good sized batch from Europe, two different types, and both english and german versions. Have a look!
March 28, 2006 Sterling 689, CLICK for bigger PIC!
Tons of cheap Sterling student rules sets just arrived!

Great for starter rules and class sets, even fully washable!
March 24, 2006 FC Rietz 57/87, CLICK for bigger PIC!
10 MINT boxed FC 57/87 sets just arrived!

Perfect boxed sets from FC, a great student rule. Ideal for gifts.
March 20, 2006 CLICK to see!
Excellent condition Pocket Deci-lon just arrived, plus many other Hemmi/Post Pocket rules, have a look!

We get very few Deci-lon 5 rules in, don't miss this one, also Hemmi 32 and Post 1441, 4 inch magnifying pocket bamboo rules, a 1920's K+E 4031, magnifying Aristo, and Nestler 0130 pocket Log Log rules.
March 12, 2006 Pickett Black Leather Simplex/Duplex Rule Case, CLICK to see!
Lots of BRAND NEW Black Leather Slide Rule Cases

Now a new leather case to go with our Sphere soft cases, have a look!
March 8, 2006 CLICK to see!
Lots of NEW Full Sized Slide Rules

New FC sets, have a look!
February 20, 2006 Interesting slide rule editorial in
Chemical Processing Magazine!

Have a look!
February 15, 2006 100's of BRAND NEW Slide Rule Sets!
Fedra rule, CLICK for bigger PIC!
Big quantity of Interesting FEDRA 868 student rules

Just arrived, very powerful low cost rule set, have a look!
February 8, 2006 CLICK to see!
Lots of new boxed high end FC 63/ series and
new Nestler 0130 Pocket rules

Just arrived!
CLICK for bigger PIC!
New Nestler 0210 leather cased sets!
December 13, 2005 Slide Rule article in December's Mechanical Engineering, have a look!
October 28, 2005 Aristor Aviats, and other circulars, CLICK to see!
Hard to find Aristo Aviats
and Sama and Etani Data Centers, Have a look!

Big quantity of the Sama and Etani rules, great Christmas Gifts for those technically inclined friends!
September 19, 2005 New Slide Rule Pins and Tie Clips, CLICK to see!
New Slide Rule Pins and Tie Clips

4 versions, plus beautiful new gift boxes for Christmas!!
September 7, 2005 Blundell 800, CLICK for bigger PIC!
Huge lot of low cost Blundell Rules just arrived!

Many styles, large quantities, great for student and first rules!
September 6, 2005 CLICK for bigger PIC!
More overhauled K+E Deci-lons in stock!

two very good sets, complete with leather cases and belt loops now in stock, plus another classic Nestler 23R/3 set!
September 1, 2005 New Tie Clip, CLICK to SEE!
New Slide Rule Tie Clips and Lapel Pins

We had many requests for these, and finally got a new vendor to do the small quantities we can afford. The new design is even nicer looking, and costs less!
July 8, 2005 CLICK to see!
Abacus and Soroban Madness

A great assortment of new Oriental Calculators!
May 30, 2005 NewCLICK to see The Oughtred Society Slide Rule Reference ManualCLICK to see The Oughtred Society Slide Rule Reference ManualNew
The long-awaited OS Slide Rule Reference Manuals
are NOW IN STOCK!

Limited first edition run of only 1,000 copies, have a look and order your copy while they last. An incredible, richly illustrated book, not to be missed! Ideal for beginners right through experienced collectors and operators.
May 2, 2005 CLICK to SEE!
Lots of new N803-T Dual Base Speed Rule sets now available!

CLICK to see!
Huge Lot of new Pickett #36 cursor windows
(for N3/P, N4/P, N16) now available!
February 17, 2005 CLICK to See!
More NEW Nestler 0232 classic wood body rules!
November 16, 2004 Just in time for Christmas, we got in a huge shipment of BRAND NEW Sama and Etani Data Centers (Circular rules with data cards) and Model 90's, right from Mr. Sama himself! Don't miss these! We even got more of the incredibly useful 700MM metric marvels!
CLICK too SEE!
CLICK HERE!
October 14, 2004 SLIDE RULE TIE CLIPS!
CLICK for bigger PIC!
Just added 5 different Slide Rule Tie Clips to the site, including working rules and a staff K+E Version!

Be the most stylish and technically adept dresser on your block with these incredible fashion accessories.
September 8, 2004 Just in, FC Geropur slide rule cleaning fluid, and Aristo tilt stands.
Dozens of hard to find slide rule accessories, still new and unused! Have a look!
September 3, 2004 CLICK for BIGGER PIC
Just in, 45 low cost student rule sets!.

Great student/school rule sets, finally back again!
July 23, 2004 Rule front, CLICK for bigger PIC!
East German Military Circular Artillery Rule sets, just arrived!

Something you just don't see every day, 11 inch aluminum circular Trig rules...
July 17, 2004 4/87 Sets, CLICK to see!
2 Beautiful Faber Castell 4/87 20 inch rule sets, just arrived!
June 1, 2004 Inexpensive Student Sets
JUST ARRIVED!

CLICK to see!
CLICK to see!
Go to the student Slide Rules CLICK HERE
to see!

Great low cost, new boxed student sets.
June 1, 2004 Aristo Scholar LL Boxed Sets
JUST ARRIVED!

CLICK to see!
Go to the New Pickett Slide Rules CLICK HERE
to see!

Great low cost 903LL full sets.
May 14, 2004 Aristo 1323 Folding Scales
JUST ARRIVED!

25 factory new sets.
CLICK to see!
Go to the New Pickett Slide Rules CLICK HERE
to see!

We are now an official Aristo/Geotec dealer, and can get any items in their current catalog, which includes scales, drafting tools, pens and drafting sets. These folding scales have been very heavily requested, so we are happy to finally be able to offer them in quantity, brand new!
May 12, 2004 European rules, JUST ARRIVED!
20 new boxed Nesler rules
including 0210 and 0218 sets.
CLICK to see!
Go to the New Pickett Slide Rules CLICK HERE
to see!

More rules, including Aviat 615 and 617 rules coming shortly!
May 11, 2004 Wahoo, JUST ARRIVED!
Over 300 new boxed Pickett rules, including N1010SLT, N600ES, N3PT and N515T sets.
Go to the New Pickett Slide Rules CLICK HERE to see!

More Pickett and European sets still to come, keep watching for more details.
March 20, 2004 CLICK to SEE!
Got more low cost student rule sets!

Great first sets or student rules.
ARRL, CLICK to see!
The SRU got a nice write up on the ARRL site, in their web review column, CLICK to see the details, or to tour the ARRL website!
January 8, 2004 CLICK to see more ARISTO rules!
Just got in many NEW high end Aristo slide rules,
click and see!

Giant 0969 Studiologs, and 0970 Multilogs,
all new boxed sets!.

CLICK to see!
Just got some Brushed Aluminum Reiss Progress rules

Great looking European rules, in a beautiful brushed satin aluminum fishish, not common in North America, scroll down to the bottom 1/4 of the page.
January 8, 2004 Click to see NEW Nestler Rules
Just got in many NEW Nestler slide rules, click and see!
High end 0292 duplexes to Elemath Standards.


PLUS, a mint boxed Hemmi 149A set, just arrived!
December 14, 2003 CLICK to see!
Build your own Circular Slide Rules!

A great season's treat from John Savard, a set of 3 powerful circular rules you can build yourself with a laser printer and a bit of manual dexterity.
October 30, 2003 CLICK to see!
Learn all about how and why slide rules work in this great and well illustrated article from John Savard, now available at the SRU!
October 24, 2003 CLICK to see!
Great new Projects to BUILD your own Log Log slide Rule!

A beautifully designed set of advanced Log Log rules you can make yourself, courtesy of John Savard. You will want to see his designs even if your aren't making one from scratch, they have some very clever techniques and scale arrangements.
April 23, 2003 CLICK to SEE!
Click to see more Acu-Math information, pics of the rules and cases found, and slide blanks.


More updates and pics about the recent Acu-Math rule find in Illinois.
Places to go in the Slide Rule Universe, people to see....
CLICK to visit the Slide Rule Marketplace
Click to visit!
CLICK HEREBuy a slide rule from our extensive on line marketplace, with restored classics, amazing new in the box rules, and low cost first student rules. We have something for everybody, even a swap and sell area for visitors.
CLICK to Learn about your slide rule!
Click to visit!
CLICK HERELearn 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 rule in good condition.
CLICK to visit the Slide Rule Archives!
Click to visit!
CLICK HERETour 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.
CLICK to visit our LINKS
Click to visit!
CLICK HEREVisit 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.
CLICK to visit the Marketplace
Click to visit!
CLICK HERENice things people have said about us in print and on TV, see the original articles. We always appreciate it!
CLICK to visit the Test Equipment Site!
Click to visit!
CLICK HEREVisit our TEST EQUIPMENT site everything from Scopes, CRT's and DMM's to nixie tubes, HP and Tektronix spare parts. A little electronic something for everybody.
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