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Sphere Research Coporation, CLICK to visit!
Please Note:
All Prices are in US$
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!

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120ES

CHEAP / STARTER / STUDENT
SLIDE RULES

Fedra 868 rule
CHEAP / STARTER / STUDENT
SLIDE RULES


Pickett 140T

go right to the catalog! Skip the INTRO, Go RIGHT to the CATALOG!

* To make your life easier, and help you find exactly what you want, we have broken the on-line slide rule catalogs into smaller sections. Just CLICK on the icon of the rule type you are looking for at the left, to see the matching catalog. Large graphical catalogs are a bit SLOW, please give them time to load.


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 CLICKHERE.

Shipping*SHIPPING: Preferred and Alternate Methods as of June 4, 2013, CLICK for FULL DETAILS ON OUR FAQ Page. Rates are now changing rapidly, often with little notice to us, so all the data has been transferred to the 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 or plastic body pocket slide rules 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.

* We scoured the world looking for inexpensive slide rules for learners and classes, and came up with a large quantity to pick from. These are almost all NEW sets, note there are a few which have been used previously, but are in excellent condition.


TEACHERS, do you need inexpensive rules for classes?
We have stock set aside for this purpose, and offer it at reduced prices.
EMAIL SUSAN HERE if you need help with this purchase, and have limited or no funding.
The CATALOG will appear below shortly!
CATALOG: JUST SCROLL DOWN TO SEE EVERYTHING !down

SEE THE CLICKPOCKET SLIDE RULE PAGE for more lower cost small rules!
K & E
68-1892
K-12 Prep

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Includes:
Slip Case
Rule
Manual

Made in USA
K+E K12 Prep
K+E's upgraded format K-12 Student rule

12"/10" Full Size Slide Rule in updated body format
K+E's stylish green and white student rule styled to look like a high-end K+E Deci-lon. Engraved scales for ruggedness, and includes vinyl slip case and english factory manual.

These are excellent condition, complete with everything, we pull all of them from the slip cases and clean any release agent off the rule (from the vinyl case). The back of the rule is blank. All have original manuals. The plastic sleeve has the name of the south american distributor stamped on these.

(9 Scales)
Front -
K, A, [ B, S, CI, T, C ] D, L

Have 12

Includes:


Manual
Slip Case

NEW
$59 ea.

68-1892 (K12 Prep)
Like this rule?

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SLIDE RULE
INFO / SCALES
QUANTITY
PRICE EACH

517L 9 Scale Rule w/leather case

517L, Click for bigger PIC!
CLICK for BIGGER PIC

NEW

Made In  Japan
6" / 5" Pocket Simplex Slide Rule
VERY LATE MODEL, BRAND NEW, Embossed white plastic construction, filled black and red scales with edge metric ruler, and leather case, very handy! Has SLT scales on slide reverse for logs and trig functions. This is a great low cost pocket rule, admittedly generic in nature, probably from Japan in the 60's or 70's, but has no maker's marks at all. We get many requests for this kind of rule, always hard to keep in stock. Please note, we will provide a Pickett reprint that works with this rule. Just got one batch, they will go FAST at this price! A great stocking stuffer! One rule CAN ship in a first class padded envelope for $6 if you feel brave.

(9 Scales + 1 Ruler)
Front -
cm/ A, [ B, CI, C ] D, K

Back -
[ S, L, T ]
Still NEW bagged with reprint!

Have 6
NEW
Includes:
Leather case
Reprint Sheet

$23 Ea.

9 Scale Rule
Like this rule?

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CLICK TO ORDER 517L 9 Scale Rule

SLIDE RULE
INFO / SCALES
QUANTITY
PRICE EACH
PICKETT
PICKETT
Microline
121C-T

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Made in USA
Conversion Rule
12" / 10" Microline Simplex Trig Slide Rule w/Conversion Data
New bagged sets, , with leatherette case, and factory instruction sheet. Embossed white plastic construction, black scales. A very useful student rule with conversion factors on the reverse side. These were shrink-wrapped hanging cards, we disassembled them because the double-sided tape that held the display together is very hard to remove. We have cleaned all the sets, and re-bagged them to make it simpler for you to use.

(9 Scales)
Front -
K, A, [ B, S, T, CI, C ] D, L
Back -
Conversion Factors

Have 5

Includes:


Bag
Instruction Sheet
Case

$44 ea.

Pickett 121C-T
Like this rule?

NEW
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SLIDE RULE
INFO / SCALES
QUANTITY
PRICE EA.
STERLING PRECISION
651

10" Metric Converter Rule

Sterling 651, CLICK for Bigger Pic!
CLICK for BIGGER PIC




Made in USA
12" / 10" plastic body Slide Rule
LATE MODEL, made by Sterling (later Borden which bought out both Acumath and Sterling Plastics, and continued to sell under those names). Includes instructions, black engraved and filled scales, and yellow contrasting color slide. Can do 16 metric conversions from US standards to Metric units and vice versa. Front slide for distance and area, reversible slide for weight and volume conversions. An inexpensive and practical rule for any science students, cooks, or anyone needing to work in both unit systems. Made in USA.

(16 Conversions)

Front - [ Inches/cm, m/feet, m/yards, miles/km, sq. in./sq. cm, sq.m/sq. ft x10, sq. m/sq yards, sq. miles/sq. km ]
Back - [ cu. in./cu cm x10, cu m/cu.ft.x10, cu. m/cu. yards, l/qt., oz./g x10, kg/lbs, metric tons/short tons, gal./l]

CLICK for Bigger Pic!
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Have 8


Includes:


Case
Rule
Instructions

US$19


Sterling 651
Like this rule?

NEW
*E-Mail US!
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SLIDE RULE
INFO / SCALES
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PRICE EACH
2-Rule
Super School Pack


27401-X
Logarex 27401-X, CLICK for bigger PIC!
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Logarex 27401-X, CLICK for bigger PIC!
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27103
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Made In Czechoslovakia NEW

2 Rule Super School Pack
Koh-I-NoorFull Size and Pocket Size Educational Pack
VERY LATE MODELS, BRAND NEW, Every year we try and come up with an inexpensive but high quality school set for students wanting to learn about slide rules. This year, thanks to a one-time buy in Peru of all places, we are able to provide an amazing set of both full size 27401-X and pocket sized 27103 BRAND NEW Logarex/Koh-I-Noor Trig slide rules, complete with cases and printed instructions AND a downloadable free learning pack created by the good folks at the Oughtred Society to make it possible to fully master slide rule operation on your own, or in a class setting. Both rules feature data references on the back side. The pocket rule also features both inch and cm rulers - incredibly handy! Both rules are self-documenting, with actual values (X, 1/X, etc.) rather than just random scale names, great for fast learning.

Oughtred SocietyThe Oughtred Society educational items (over 150Mb) links are provided to download the PDF files directly to your device via the internet. This package also includes a basic printed slide rule manual in Spanish that comes with the pocket rule, and a brochure on the Oughtred Society so you can join to learn more about slide rules. By keeping the size and weight down we can also offer FREE shipping anywhere on earth for this deal only (off-world too, if you provide the carrier details), so don't miss out on this one time special. The one price is all you pay to get it sent right to your door (typically 2 week delivery, faster Expresspost delivery is available for an additional charge).
Free PDF Oughtred Books Links Included:
Beginner's Guide to Collecting Slide Rules All About Slide Rules

(Full Size Rule - 10 Scales)
Front - K, A, [ B, CI, C, ] D, L
Back - [ S, ST, T ] + Data


(Pocket Size Rule - 9 Scales + 2 Rulers)
Front - K, A, [ B, CI, C ] D, L
Back - inch [ S, T ] cm + Data


Customer Feedback on this Pack:
hereYears ago in the 90s my father looked for a slide rule in a high street shop forgetting they were obsolescent since the mid 70s. Finally I found one for him at Slide Rule Universe and immediately enquired as to range of items, pricing and postage. The response was immediate and professional and the service superb. Within days I had a slide rule and manual shipped from Canada to my father in Hong Kong and it made his day. Thanks again to Susan at Slide Rule Universe and I shall definitely be a repeat customer.
--Eugene Daniel, UK
Have 19 Sets
NEW

Includes:
27103 Set
27401-X Set
Info Links
Manuals + Reprints
Shipping

Sale
$69 ea.
Shipping Included!

Super School Pack
Like this rule?

NEW
*EMAIL US!
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SLIDE RULE
INFO / SCALES
QUANTITY
PRICE EACH
Logarex
KOH-I-NOOR


27401-X
Reitz-Enhanced
10" Rule

Logarex 27401-X, CLICK for bigger PIC!
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Logarex 27401-X, CLICK for bigger PIC!
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Made In Czechoslovakia
Scale Close-Ups
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Just got lots more in for class sets!
Koh-I-Noor12" / 10" plastic body Slide Rule
VERY LATE MODEL, MINT CONDITION. NEW, mint condition Logarex/KOH-I-NOOR sets with 2 part green plastic case.

Basic Rietz format rule (has over-range scale extensions for easier operation) with added reference features. It has a black/red self-documenting scale arrangement and pale yellow slide. The slide reverse has trig (S, ST, T) scales, and the back has a treasure trove of useful data and factors. It has a slightly magnifying multi-line simplex cursor design that does area of a circle, plus some other interesting stuff like horsepower conversion. These are beautifully made rules, very well constructed. We will include basic instruction reprints, as these came bulk packed with with no manuals.

Made in Czechoslovakia, they were marketed world wide under the KOH-I-NOOR brand. We got the chance to make one big purchase of these, no more when they are gone! Great starter rule for older kids!

(10 Scales)

Front - K, A, [ B, CI, C, ] D, L
Back - [ S, ST, T ]

Powerful low cost rule, loaded with features, great value!

Have 55

NEW

Includes:

Rule
Hard Case
Manual Reprint

Sale, Save $10
Now only $39 Ea.


Logarex/KOH-I-NOOR 27401-X
Like this rule?

NEW
*EMAIL US!
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SLIDE RULE
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PRICE EACH

9 Scale Rule

9 Scale Rule, CLICK for bigger PIC!
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NEW

Made In  Japan
Scale Close Up
6" / 5" Pocket Simplex Slide Rule
VERY LATE MODEL, BRAND NEW, Embossed white plastic construction, filled black scales with edge inch and metric rulers, very handy! Has SLT scales on slide reverse for logs and trig functions. This is a great low cost pocket rule, admittedly generic in nature, probably from Japan in the 60's or 70's, but has no maker's marks at all. We get many requests for this kind of rule, always hard to keep in stock. Please note, we will provide a Pickett reprint that works with this rule. Just got one more batch, they will go FAST at this price! A great stocking stuffer! One rule CAN ship in a first class padded envelope for $6 if you feel brave. PLUS, we now have nice dark blue leatherette slip cases susan just made for these, add $5 each.

(9 Scales + 2 Rulers)
Front -
cm/ A, [ B, CI, C ] D, K \in

Back -
[ S, L, T ]
Still NEW bagged with reprint!

GREAT FEATURE! The CURSOR can't get lost, it's locked on the rule!

Have 45
NEW
Includes:
Reprint Sheet

$18 Ea.

9 Scale Rule
Like this rule?

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SLIDE RULE
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6 Scale Rule

6 ScaleRule, CLICK for bigger PIC!
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CLICK for BIGGER PIC

NEW

Made In  Japan
6" / 5" Pocket Simplex Slide Rule
VERY LATE MODEL, BRAND NEW, Embossed white plastic construction, filled black scales. This is a great low cost pocket rule, admittedly generic in nature, probably from Japan in the 60's or 70's, but has no maker's marks at all. We get many requests for this kind of rule, always hard to keep in stock. Please note, these just come in a bag, and have no original instructions, we will provide a Pickett reprint that works with this rule. Just got one more batch, they will go FAST at this price! A great stocking stuffer! One rule CAN ship in a first class padded envelope for $6 if you feel brave. PLUS, we now have nice dark blue leatherette slip cases susan just made for these, add $5 each.

(6 Scales)
Front -
A, [ B, CI, C ] D, K

Still NEW bagged with reprint!


GREAT FEATURE! The CURSOR can't get lost, it's locked on the rule!

SORRY, SOLD
NEW
Includes:
Reprint Sheet

$11 Ea.

6 Scale Rule
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ACUMATH
ACUMATH
Model No. 400

Model 400, CLICK for bigger PIC!
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Model 400, CLICK for bigger PIC!
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Model 400, CLICK for bigger PIC!
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NEW
USA
12" / 10" Simplex Mannheim Trig Slide Rule
VERY LATE MODEL, NIB, BRAND NEW, complete in blister pack (two types) with brown/black vinyl slip case, and instruction sheet, and some are loose packed, mainly with brown/black cases (no blister pack). Embossed white plastic construction, black scales. A very useful and popular student rule, from the last production of the Sterling/Acumath/Borden Plastics amalgamation. We were incredibly lucky to find so many new factory packed sets still intact, they are great as a first student rule! Some have slightly different packaging, we will provide your choice if we can.

(9 Scales)
Front -
S, K, A, [ B, CI, C ] D, L, T



Still NEW factory packed!

Have 1 Loose
NEW

Includes:
Blisterpack
Sheet
Case

$35 Ea.


No. 400
Like this rule?

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Aristo
Aristo
Rietz-ST
912

Aristo 912, CLICK for bigger PIC!
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NEW

Germany

Aristo 912, CLICK for bigger PIC!
CLICK for bigger PIC!

12"/10" Scholar Slide Rule
NEW factory boxed sets, with 2 part plastic case, 100 Year Anniversary boxes, and even the inspection slip inside. The rule has a 4 line slightly magnifying cursor, plus two color (red/black) scale markings and scales are self-documenting on the right hand side. A very functional and attractive trig rule set, with a bonus top edge cm ruler. The back is blank, but the slide reverse has S, ST and T trig scales.. Includes box, 2-part case, and basic English reprint, because manuals were not included.


(10 Scales + cm Ruler)
Front - cm/ A, [ B, CI, C, ] D, L, K
Back - [ S, ST, T ]

Have 10
NEW
Includes:
BOX
Case
Manual Reprint


$49

Aristo 0912 Set
Like this set?

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PICKETT
PICKETT
MICROLINE 120T/ES

CLICK for bigger PIC!
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Made in USA
GOOD USED SETS FINALLY BACK IN STOCK!
12" / 10" Simplex Slide Rule
VERY LATE MODEL, USED SCHOOL Sets, very good condition, with leatherette case, and instruction sheet, NOT BOXED! Embossed yellow (ES eye-saver) and White (T Traditional) plastic construction, black scales. A very useful student rule. We have had real trouble finding more sets, so don't miss these. This is the first stock in over a year, all cleaned and ready to go!

(9 Scales)
Front -
K, A, [ B, S, T, CI, C ] D, L



USED Loose rules and cases

Have 6 White
3 Yellow

Includes:


Sheet
Case

$29 ea.

Used 120T/ES
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PICKETT
PICKETT
115 Basic Math

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Made in USA
Basic Math, can also ADD and SUBTRACT!
12" / 10" Simplex Slide Rule
Unusual model that can add and subtract! New boxed sets, , with leatherette case, and factory manual. Embossed white plastic construction, black scales. A very useful student rule with added adding and subtracting functions, plus multiplication and division, squares and square roots, and logs. We have had real trouble finding more sets like this, so don't miss these.

(8 Scales)
Front -
D*, X, [ Y, CI, C ] D, A, L

SORRY, SOLD

Includes:


Box
Manual
Case

$49 ea.

Pickett 115
Like this rule?

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PICKETT
PICKETT
MICROLINE 120T

CLICK for bigger PIC
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NEW

Made in USA
12" / 10" Simplex Slide Rule
VERY LATE MODEL, NIB, BRAND NEW, complete in factory box with leatherette case, and instruction sheet. Embossed white plastic construction, black scales. A very useful student rule, and an ideal first slide rule gift! These are MINT condition, perfect. You can give this to very young kids, as it can be easily washed in a sink with a bit of dish detergent if it gets covered in PB+J. We have been out of these for a long time, glad to have some back! Sorry, the boxes are a bit flattened from storage!

(9 Scales)
Front -
K, A, [ B, S, T, CI, C ] D, L



Still NEW factory packed!

SORRY, SOLD

Includes:


Box
Sheet
Case



$39 ea.

120T
Like this rule?

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PRICE EA.
Faber-Castell
Faber-Castell
Novo-Mentor
152/81

152/81, CLICK for bigger PIC!
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152/81, CLICK for bigger PIC!
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Germany

A great high end student rule from Faber-Castell!
CLICK for bigger PIC!
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12"/10" precision Slide Rule
BRAND NEW, MINT CONDITION! complete with 2-part ivory colored plastic case and factory manual in English!

Versatile duplex plastic body rule with 5 line cursor, pink color accent stripes on primary scales, and very useful mark-up/discount scale, and 5 dual purpose financial/math scales plus expanded trig scales. The rule is self documenting on right hand side for all scales. A very good quality rule with dual red/black scale markings. Excellent condition, and we get very few sets in this shape! (RH)


(17 Scales)
Front - A, DF, [ CF, CIF, CI, C, ] D , K
Back - L, T1, T2, [ S', CI, C, ] D, S, ST


SORRY, SOLD
Includes:
Case
English Manual


Now $69


FC 152/81
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PICKETT
PICKETT
MICROLINE
140(CT)

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Pickett 140
NEW

USA
12" / 10" Log Log Trig Duplex Slide Rule - Excellent low cost advanced set!

Log Log Microline Rule

Complete on factory card with leatherette case, "How to use Log Log Slide Rules" instruction manual. Engraved white plastic construction, black scales. This is an early version of a very sophisticated rule, made in a low cost format by Pickett, normally would have a T at the end for white Traditional, but just says 140, even though yellow ones say 140ES. Go figure. Just arrived.


(20 Scales)
Front - LL2-0.1, LL3-1.0, DF
[ CF, CIF, L, CI, C ]
D, LL2+0.1, LL3+1.0
Back - LL0, LL00, A,
[ B, S, ST, T, C ]
D, K

SORRY, SOLD
Includes:
Manual
Case

$59 Ea.


140CT
Like this rule?

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STERLING PRECISION
589

10" Senior Mannheim Rule

Sterling 589, CLICK for Bigger Pic!
CLICK for BIGGER PIC


Sterling 589, CLICK for Bigger Pic!
CLICK for BIGGER PIC


Made in USA
12" / 10" plastic body Slide Rule
LATE MODEL, made by Sterling (later Borden which bought out both Acumath and Sterling Plastics, and continued to sell under those names). Includes instructions, black engraved and filled scales, and green contrasting color slide. Includes a plastic sleeve case and illustrated instructions. An inexpensive and practical first or student rule, made in USA.

(9 Scales)

Front A, [ B, CI, C, ] D, K
Back - [ S, L, T ]

CLICK for Bigger Pic!
CLICK for Bigger Pic!
SORRY, SOLD


Includes:


Case
Rule
Instructions

US$24


Sterling 589
Like this rule?

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