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Information About
Pickett Slide Rules

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

Pickett Display from ca. 1970 Pickett & Eckel, Inc., designed and sold their slide rules by categorizing end users (marketing research) and matching the type and number of scales, and subsequent price, to those customers. Early literature provided a matrix of slide rule model versus intended user group, from secondary school up to the professional engineering community.

The sales display pictured at the left shows nine of the most popular Pickett aluminum rules available in 1970:
* N1010-ES ($12.95)
* N1010SL-ES ($14.95)
* N200-ES ($6.95)
* N902-ES ($5.95)
* N4-ES ($29.95)
* N3P-ES ($13.95)
* N3-ES ($26.95)
* N500-ES ($16.95)
* N600-ES ($10.95)
(info and photo courtesy of Alan Morris, see his article on Accuracy vs. Precision to contact him directly.)

The following list is what Pickett & Eckel (based in Chicago. IL) and later Pickett (based in Santa Barbara, CA) offered during their production as standard products, but does not include every custom rule. Model numbers initially had no suffixes, and were white, then later had suffixes of either "ES" or "T" denoting Eye Saver yellow color or Traditional white, respectively. There were also a few rules made in "MF" clear Metal Finish, mainly as promotional rules. Later rules had an "N" prefix (new), and improved cursor design, along with square corners, and in some cases, slightly altered scale layouts. Pickett listed their slide rules as 10 inch or pocket, but was inconsistent as to what this measurement actually meant. A 10 inch rule was physically 12 inches in length, but the scales were 10 inches. The pocket rule was physically 6 inches in length with 5 inch scales. However, Pickett literature would refer to 10 inch and 6 inch slide rules! At least one 8 inch model is known to exist (808-T), but rules longer than 10/12 inches do not appear to have been made.

The earliest Pickett metal rules were made with Magnesium alloy bodies (models 2, 3, 4, and 1000), but production switched to Aluminum in the 40's. Pickett produced many custom rules in both aluminum and plastic, including rules for accident scene skid estimation, aerial photography, purchasing, fuel sizes and weights, hydraulic valve sizing, and turbine engine analysis to name just a few. They also made some promotional variations with stock rules like the N200, with custom logos and colors, but the rule identification did not change, making for some confusion afterwards. There is at least one green rule known, a modified N200ES, with no special identification. Pickett also offered some circular rules including models 108-112 which are simply rebranded Japanese rotorules, also sold by SINCO (Scientific Instruments) in white, and marketed in the USA by Pickett mainly in yellow. They made their own 101C circular rule, but it is a very simple design.

Pricing varied by retailer, however Pickett did offer demonstration slide rules in 4 foot and 7 foot lengths: a 4 foot rule sold for $15 and the 7 foot rule was $25 in 1960. These were available with scales to match models N4, N803, and N1010 with the Ln scale added. These large rules were available free to schools which ordered 24 or more slide rules!

Thanks to Tom Whiteway, Craig Kilehofer, Dave Crate, Bobby Feazel and many others for help with rules, photos, and information. We all hope you like the results.
CATALOG: JUST SCROLL DOWN TO SEE EVERYTHING !down
* The full Pickett teacher's manual is now on line HERE for you!

TO SEE PICKETT RULES FOR SALE (and more illustrations), CLICK HERE!
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
B1

B1, CLICK for bigger PIC!
Click for BIGGER PIC

Made in JapanUSA

12" / 10" Bamboo Powerlog Dual Base Exponential Speed Slide Rule.
Bamboo construction (Pickett's only bamboo rule), made in Japan, and marketed in the USA by Pickett. Log Log scales are folded 80 inches long with a range from 0.00005 to 22,000. 20 inch square root scales. The LL scales are on both sides, along with the C,and D scales which are duplicated on both sides. Over-range extensions on C and D scales.


(25 Scales)
Front - LL1-, LL2-, LL3-, DF, [ CF, CIF, CI, C, ] D, LL3+, LL2+, LL1+
Back - LL0-, L, K, A, [ B, S, ST, T, C, ] D, Sqr 1, Sqr 2, DI, LL0+
Sold with a plastic lined leather case.
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
2

Pickett 2, CLICK for bigger PIC!
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USA

12" / 10" Deci-Log Log Slide Rule, Pickett and Eckel's first metal body rule, made with a Magnesium body.
Normally supplied in a molded, rubberized case.
Has 28 scale sections. Log Log, called N, scales are folded 80 inches long with a range from 10^ -10 to 10^ 10. 30 inch cube root and 20 inch square root scales. The N (log-log), and L, scales are all on one side, and the C, D, & CI scales are duplicated on both sides.

(28 Scales)
Back - N1+/-), N2+/-, DF/m, [ CF/m, CIF, L, CI, C, ] D, N3+/-, N4+/- . NOTE: The inverse N scales were marked 1/N.
Front - Cube Root 1, Cube Root 2, Cube Root 3, DF, [ CF, T, ST, S, CI, C, ] D, DI, Sqr 1, Sqr 2.
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N3T

N3T rule, CLICK for bigger PIC
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Click for BACK PIC

USA

12" / 10" Power Log Exponential Log Log Duplex Slide Rule.
White (T) coated aluminum construction, black and red scales, dual log scale design in one of Pickett's most powerful rules. This is a very sophisticated 32 scale rule, made in the trademark aluminum body format by Pickett, one of my Favorite Pickett rules, with a much less cluttered layout than the N4, without sacrificing important functions.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.


(32 Scales !)
Front - 2 sq. root scales, K, A, [ B, ST, S, T1, T2, CI, C, ] D, DI, 3 cube root scales
Back - LL0+, LL0-, LL1+, LL1-, DF [ CF, CIF, Ln, L, CI, C, ] D, LL2+, LL2-, LL3+, LL3-
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N4ES

N4ES rule, CLICK for bigger PIC
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Click for BACK PIC

USA

12" / 10" Dual Base Vector Log Log Duplex Slide Rule.
Eye-saver yellow (ES) coated aluminum construction, black and red scales, dual log scale design in Pickett's most popular power rule set. This is a very sophisticated 34 scale rule, made in the trademark aluminum body format by Pickett.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.


(34 Scales !)
Front - 3 cube root scales, DF, [ CF, CIF, T, T, ST, S, CI, C, ] D, DI, 2 sq. root scales
Back - LL1+, LL1-, LL2+, LL2-,DF/M [ DCF/M, TH, SH, Ln, L, CI, C, ] D, LL3+, LL3-, LL4+, LL4-
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N4T/N4pT
Boxed Set

Click for BIGGER PIC!
Click for BIGGER PIC

Click for BIGGER PIC!
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Click for BIGGER PIC!
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USA

12" / 10" and 6" / 5" Dual Base Vector Log Log Duplex Slide Rule Set.
White (T) coated aluminum construction, black and red scales, dual log scale design In Pickett's most popular power rule set. This is one of the famous Pickett 'Twin-Packs'.




(34 Scales !)
Front - 3 cube root scales, DF, [ CF, CIF, T, T, ST, S, CI, C, ] D, DI, 2 sq. root scales
Back - LL1+, LL1-, LL2+, LL2-,DF/M [ DCF/M, TH, SH, Ln, L, CI, C, ] D, LL3+, LL3-, LL4+, LL4-
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N16ES

N16ES rule, CLICK for bigger PIC
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Click for BACK PIC

USA

12" / 10" Dual Base Electronics Vector Log Log Duplex Slide Rule.
Eye-saver yellow (ES) coated aluminum construction, black scales, dual log scale design In Pickett's high end 'Chan Street' power rule. This is a very sophisticated 34 scale rule, which includes many unique electronics scales, made in the trademark aluminum body format by Pickett. Operation of the electronics scales is covered by the Chan Street special supplement to the manual.


(34 Scales !)
Front - SH1, SH2, TH, DF, [ CF, L, S, ST, T, CI, C, ] D, LL3, LL2, LL1, Ln
Back - Theta (2), db, D/Q, XL, Zs/Xc [ C/L, F, lambda, w, t, tr'/X'c, Cr, ] Lr, db(2), cos, t'c/c'
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
ED-26

Click for BIGGER PIC
Click for BIGGER PIC

USA

9" / 8" Educational Projection Slide Rule.
A clear, see-though rule for use with an overhead projector, much simpler to transport and set up than a wall sized deomstrator. Used for classroom instruction, covers basic (non-trig) scales.


(7 Scales)
Front - K, A, [ B, CI, C, ] D, L
SLIDE RULE
INFO / SCALES
Pickett
PICKETT
Model 101C


Pickett 101C, CLICK for bigger PIC!
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Pickett 101C, CLICK for bigger PIC!
CLICK for OTHER SIDE!

Pickett 101C

Made in USA

4 Inch Duplex Circular

Pickett's most popular aluminum circular slide rule, with decimal to fraction conversions and additional scales on rear face. Very nice rule, shown with the gold embossed black belting leather case.

This is a powerful lightweight pocket rule, with performance equal to a much larger straight rule. Rotating dual cursors on one side (with the scale ID's on the cursor), single cursor on the reverse. Note that this rule has no rotating disks, but uses a slip clutch cursor to recreate the slide movement of a straight rule.

(15 Scales + conversions)
Front
- C, CI, A, Af, L, Fa, LL2, LL1, DS, DT, M
Back
- C, S, ST, T, Fractional Conversions

SLIDE RULE
INFO / SCALES

PICKETT
104C
PROFIT CALCULATOR

CLICK for bigger pic
Click for BIGGER PIC of RULE


USA

Pickett's commercial pricing circular rule, a huge 8" plastic simplex rule. Instructions on the face. One stationary back side, one rotating front disk, and one rotating clear cursor. Very neat and useful slide rule.

(4 Scales)
Front - Markup, Price, Margin, Discount

SLIDE RULE
INFO / SCALES
Pickett
PICKETT
Model 105C
Profit
Calculator


CLICK for bigger PIC!
CLICK for bigger PIC!

Made in USA

4 Inch Simplex Circular

Pickett's popular plastic commercial circular slide rule, with mark-up and discount functions. Rule has operating instructions on the face, and was a low cost and popular rule widely used in retail. Still made today as a cardboard slide chart by several companies.

(4 Scales + directions)
Front
- Profit mark up , Unit Cost, Profit Margin %, Discount %
Back
- Blank

SLIDE RULE
INFO / SCALES

PICKETT
106C
PROPORTIONAL
SCALE
CALCULATOR

106, CLICK for bigger PIC!
Click for BIGGER PIC of RULE


USA

Pickett's proportional scale circular rule, commonly used in commercial art departments, photography and graphical layout. Still made today as a cardboard slide chart by several companies.

(4 Scales)
Front - original size, desired size, ratio, percent

Pickett
PICKETT
Model 110ES

Pickett 110ES, CLICK for bigger PIC!
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Pickett 110ES, CLICK for bigger PIC!
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The case and manual

Japan

Made in USA

5 Inch Log Log Duplex Circular

One of the most sought after Pickett aluminum circular slide rules, in the popular ES (eye saver) yellow color. Complete with black belting leather case with gold logo, and miniature manual that fits inside the case. Has tracked duplex cursor, (with scale markings), and rotating disks on both sides. The unusual two line cursor permits fast circle area calculations between A and D (set the long cursor on D to the diameter, A will show the area on the short cursor).

This is a very powerful pocket rule, with performance equal to a much larger straight rule. Has extended trig scales and log log scales. Has doubled CI scale (EI), linear V1 and V2 scales (for right triangles), G scale for stadia calculations, and extended spiral C and D scales (equivalent to 50 inch length). This rule's unique construction has laminated engraved and filled plastic bodies on a metal core for mechanical strength and very long wear life. This rule DOES NOT have painted scales like the 101C, it is engraved like a Versalog.

This rule was made in Japan, and marketed by Pickett in yellow, and SINCO (Scientific Instruments Co.) in white.

(12/12 [24 Total] Scales, 2 are spiral)
Front
- LL3, LL2, LL1, K, A, D,
[ C, CI, B, EI ]
Back
- D (spiral) V2,
[ V1, C (spiral), G, T, S, T, S, T, ST, L ]

SLIDE RULE
INFO / SCALES
Pickett
PICKETT
Model 111ES


Pickett 111ES, CLICK for bigger PIC!
CLICK for bigger PIC!


Pickett 111ES, CLICK for bigger PIC!
CLICK for OTHER SIDE!


The case and manual

Japan

Made in USA

5 Inch Log Log Duplex Circular

One of the most uncommon Pickett aluminum circular slide rules, in the popular ES (eye saver) yellow color. Complete with black belting leather case with gold logo, and miniature manual that fits inside the case. Has tracked duplex cursor, (with scale markings), and rotating disk on one side. The unusual two line cursor permits fast circle area calculations between A and D (set the long cursor on D to the diameter, A will show the area on the short cursor).

This is a powerful pocket rule, with performance equal to a much larger straight rule. Has extended trig scales and EIGHT log log scales. Has DI scale and doubled CI scale (EI), with six trig scales. This rule's unique construction has laminated engraved and filled plastic bodies on a metal core for mechanical strength and very long wear life. This rule DOES NOT have painted scales like the 101C, it is engraved like a Versalog.

This rule was made in Japan, and marketed by Pickett in yellow, and SINCO (Scientific Instruments Co.) in white.

(10/13 [23 Total] Scales)
Front
- LL3, LL2, LL1, LL0, K, A, D,
[ C, CI, EI ]
Back
- /LL3, /LL2, /LL1, /LL0, L, DI, D, T, S, T, S, T, ST

SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
MICROLINE 120

Click for bigger Pic
CLICK for BIGGER PIC
NEW

120ES-bigger pic

USA

12" / 10" Student Simplex Slide Rule
Shown complete in factory box with leatherette case, and instruction sheet. Engraved white or yellow plastic construction, black scales. This was a great starter rule, made in a low cost format by Pickett for schools. ES (Yellow) or White (T) rules exist, in several different packaging styles.

(9 Scales)
Front - K, A,
[ B, S, T, CI, C ]
D, L
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
MICROLINE 121T

CLICK for bigger PIC!
CLICK for BIGGER PIC


CLICK for OTHER SIDE
12" / 10" Simplex Slide Rule.
Shown complete in factory box with leatherette case, and instruction sheet. Embossed white plastic construction, black scales, with conversion factors on reverse side. A very useful student rule, basically a 120 with additional data.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

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

SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
MICROLINE 140


CLICK for BIGGER PIC
NEW

CLICK for BIGGER PIC OF BACK

USA

12" / 10" Log Log Trig Duplex Slide Rule
Shown complete in factory box with leatherette case, "How to use Log Log Slide Rules" instruction manual. Engraved white plastic construction, black scales. This is a very sophisticated duplex log log rule, made in a low cost plastic format by Pickett for schools.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

(22 Scales)
Front - LL2-0.1, LL3-1.0, DF
[ CF, CIF, L, CI, C ]
D, LL2+0.1, LL3+1.0
Back - LL1-0.01, K, A,
[ B, Cos S, Sec T ST, T, C ]
D, DI, LL1+0.01
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
MICROLINE 160T

160T, click for bigger PIC!
CLICK for BIGGER PIC


USA
6" / 5" Pocket Simplex Slide Rule.
Shown complete in factory box with leatherette case, and instruction sheet. Embossed white plastic construction, black scales. This is a great inexpensive pocket rule, made in a low cost format by Pickett for schools.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

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

SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N200-ES

N200ES
N200-ES
CLICK for BIGGER PICNEW


CLICK for BIGGER PIC OF BACK

USA

6"/5" Pocket Slide Rule
Pocket Duplex Rule, shown complete in factory box with elegant gold embossed black leather pocket case with nifty extractor tab to easily pull the rule out, and Pickett instruction manual. Many variations of this rule with company logos exist.

*Eye Saver (ES) yellow body style.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.


(12 Scales)
Front - K, A, [ B, CI, C, ] D, L
Back - [ S, ST, T, C, ] D
SLIDE RULE
INFO / SCALES
PICKETT
GREEN
PICKETT
N200-ES

N200ES GREEN, Click for bigger PIC!
CLICK for BIGGER PICNEW


CLICK for BIGGER PIC OF BACK

USA

6"/5" Pocket Slide Rule
Pocket Duplex Rule, custom designed for Pritchard (there are both US and Canadian versions). Marked Eye-Saver (ES) yellow, but actually GREEN, aluminum construction underneath. The mos unusual of the 200 model variations.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

(12 Scales)
Front - K, A, [ B, CI, C, ] D, L
Back - [ S, ST, T, C, ] D
SLIDE RULE
INFO / SCALES
PICKETT
PURCHASING
PICKETT
N201-S

Click for bigger PIC!
CLICK for BIGGER PIC

CLICK for K-35 Side

USA

6"/5" Pocket Slide Rule
Pocket Duplex Rule, custom designed with the K-35 economic purchase quantity rear face (designed by O.C. Lang, 1955).

Marked (S), but actually white, aluminum construction. Fascinating scale operation for the purchase side.

(12 Scales)
Front - K, A, [ B, CI, C, ] D, L
Back - R, [ C, S, ] Q
SLIDE RULE
INFO / SCALES
PICKETT
Pocket Log Log
PICKETT
N300-ES

Click for bigger PIC!
CLICK for BIGGER PIC

CLICK for Other Side

USA

6"/5" Pocket Log Log Slide Rule.
Pocket Duplex Log Log Rule, very powerful compact pocket rule, see alos the N600 for a pocket log log rule.

Eye Saver Yellow (ES), aluminum construction.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

(16 Scales)
Front - LL1, A, [ B, T, S, C, ] D, LL2
Back - LL3, DF, [ CF, CIF, CI, C, ] D, L
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N400-T

400T-click for box closeup
Click for box close-up


N400-T
CLICK for BIGGER N400-T PICNEW


CLICK for BIGGER N400-T PIC OF BACK

USA

6"/5" Pocket Business Slide Rule
Pocket Business Duplex Rule, shown complete in factory display box with elegant gold embossed maroon leather case with pocket clip, warranty certificate, and Pickett instruction manual.

*Standard white (T) aluminum construction. Numerous money/discount calculations, widely used at some business schools in the 60's and early 70's.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.


(14 Scales)
Front - K, A, [ B, CI, C, ] D, L
Back - R%, DF, [ CF R%, C, ] D, C%
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N500ES

Pickett N500ES, CLICK for bigger Pic
CLICK for BIGGER N500ES FRONT PIC


CLICK for BIGGER PIC OF N500ES BACK

USA

12" / 10" Hi Log Log Duplex Slide Rule.
Eye-saver yellow (ES) coated aluminum construction, black and red scales. This is a sophisticated rule, made in the trademark aluminum body format by Pickett.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

(22 Scales)
Front - LL2+0.1, LL2-0.1, DF
[ CF, CIF, L, CI, C ]
D, LL3+1.0, LL3-1.0
Back -
LL1+0.01, LL1-0.01, A,
[ B, T, ST, S, C ]
D, DI, K
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N500T

Pickett N500T, CLICK for bigger Pic
CLICK for BIGGER N500T FRONT PIC


Pickett N500T, CLICK for bigger Pic
CLICK for BIGGER PIC OF N500T BACK

USA

12" / 10" Hi Log Log Duplex Slide Rule.
Traditional (T) white coated aluminum construction, black and red scales. This is a sophisticated rule, made in the trademark aluminum body format by Pickett.

(22 Scales)
Front - LL2+0.1, LL2-0.1, DF
[ CF, CIF, L, CI, C ]
D, LL3+1.0, LL3-1.0
Back -
LL1+0.01, LL1-0.01, A,
[ B, T, ST, S, C ]
D, DI, K
SLIDE RULE
INFO / SCALES
PICKETT
BOXED
PICKETT
N500ES

Boxed N500ES, Click for bigger PIC!
CLICK for BIGGER N500ES FRONT PIC


CLICK for BIGGER PIC OF N500ES BACK

USA

12" / 10" Hi Log Log Duplex Slide Rule
Shown in the Pickett factory box. Eye-saver yellow (ES) coated aluminum construction, black and red scales. This is a sophisticated rule, made in the trademark aluminum body format by Pickett. Shown complete in the factory box with manual, leather case and guarantee certificate.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

(22 Scales)
Front - LL2+0.1, LL2-0.1, DF
[ CF, CIF, L, CI, C ]
D, LL3+1.0, LL3-1.0
Back -
LL1+0.01, LL1-0.01, A,
[ B, T, ST, S, C ]
D, DI, K
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
BOXED N500T

Pickett N500T, CLICK for bigger Pic
CLICK for BIGGER N500T FRONT PIC


Pickett N500T, CLICK for bigger Pic
CLICK for BIGGER PIC OF N500T BACK

USA

12" / 10" Hi Log Log Duplex Slide Rule.
Shown as a full boxed set with black leather case. Traditional (T) white coated aluminum construction, black and red scales. This is a sophisticated rule, made in the trademark aluminum body format by Pickett.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

(22 Scales)
Front - LL2+0.1, LL2-0.1, DF
[ CF, CIF, L, CI, C ]
D, LL3+1.0, LL3-1.0
Back -
LL1+0.01, LL1-0.01, A,
[ B, T, ST, S, C ]
D, DI, K
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N515T
Electronics Rule

Pickett N515T, CLICK for bigger Pic
CLICK for BIGGER N515T FRONT PIC


Pickett N515T, CLICK for bigger Pic
CLICK for BIGGER PIC OF N515 scales!

CLICK for BIGGER PIC OF N515 scales!
CLICK for BIGGER PIC OF N515 scales!

CLICK for BIGGER PIC OF N515 scales!
CLICK for BIGGER PIC OF N515 scales!

USA

12" / 10" Electronic Duplex Slide Rule.
Shown as a boxed set with maroon leather case, gold embossed with Cleveland Institute of Electronics and Pickett logo. Traditional (T) white coated aluminum construction, black and red scales, optimized for electronics problems.

This is an extremely useful rule, made in the trademark aluminum body format by Pickett. It was part of the CIE electronics course. Fortunately, all the special scales are SELF-DOCUMENTING on the right hand side!

Need the special scale operating instructions? JUST CLICK HERE to download the zipped file with all the scanned pages. (GIFs, use any good image viewer like ACDSee to display/print each page)


(15 Scales)
Front - H, 2pi, A,
[ B, S, T, CI, C ]
D, L, Ln
Back -
Reactance/Resonance Decimal Point locator scales
formulas and factors
SLIDE RULE
INFO / SCALES
PICKETT
Aerial Photography
PICKETT
520-T

CLICK for Bigger Pic!
CLICK for BIGGER PIC

CLICK for Other Side

USA

12"/10" USAF (A-1) Aerial Photography Slide Rule
Full sized Duplex Rule, with aerial photography scales on reverse, intended primarliy for the USAF and US Army.

White, aluminum construction. Has full A-1 instructions on rear face, and a powerful folded scale set on the front.

(16 Scales)
Front - L, A, DF, [ CF, CIF, T, S, C, ] D, DI, K
Back - Ground Size, [ Image size cm, ft, FL, ] Altitude
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
CREI
N531ES



CLICK for BIGGER PIC


CLICK for OTHER SIDE PIC
12" / 10" Log Log Trig Electronic Duplex Slide Rule.
Shown complete with leatherette case.

Special Capitol Radio Engineering Institute Rule. Yellow coated Aluminum construction, black scales. Another special purpose rule (see also the 515) for CREI.

Has a special 2pi scale added for electronics use, plus additional markings.


(17 Scales)
Front - LL2, LL1, DF [ S, ST, T, C ] D, LL3
Back - L, Ln, A, [ B, CI, C ] D, 2pi, K
SLIDE RULE
INFO / SCALES
PICKETT
Pratt and Whitney
N540T

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USA
Pratt and Whitney
SPECIAL PURPOSE Pickett Rule

12"/10" Pratt and Whitney CS126-1 Turbine Rule
Full Sized Duplex Rule, shown complete in factory box with gold embossed codovan leather case with snap on belt loop.

*Traditional (T) white body style.

This is a specialized rule custom made for Pratt and Whitney for turbine engine calculations, their part number CS 126-1. Very uncommon set.

(9 Scales)
Front Inlet air temp F [ PT, C, ] D
Back Std., [ Inlet Air Temp F, Indicated Temp C, Indicated Temp F, Corrected temp. F, Corrected Temp. C] D
SLIDE RULE
INFO / SCALES
PICKETT
Pocket Log Log
PICKETT
N600-ES

N600ES, Click for Bigger Pic!
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USA

6"/5" Pocket Log Log Speed Slide Rule
Pocket Duplex Log Log Speed Rule, very powerful compact rule with an amazing 22 scales!

Eye Saver Yellow (ES), black and red scales, aluminum construction. Requires sharp vision.

(22 Scales!)
Front - LL1+, LL1-, A, [ B, ST, T, S, C, ] D, DI, K
Back - LL2+, LL2-, DF, [ CF, Ln, L, CI, C, ] D, LL3+, LL3-
SLIDE RULE
INFO / SCALES
PICKETT
Pocket Log Log
PICKETT
N600-T

N600T, Click for Bigger Pic!
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USA

6"/5" Pocket Log Log Speed Slide Rule.
Pocket Duplex Log Log Speed Rule, very powerful compact rule with an amazing 22 scales!

Traditional White (T), black and red scales, aluminum construction. Good vision required.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

(22 Scales!)
Front - LL1+, LL1-, A, [ B, ST, T, S, C, ] D, DI, K
Back - LL2+, LL2-, DF, [ CF, Ln, L, CI, C, ] D, LL3+, LL3-
SLIDE RULE
INFO / SCALES
PICKETT
Pocket Log Log
PICKETT
N600-ES


CLICK for BIGGER PIC

USA

6"/5" Pocket Log Log Speed Slide Rule.
Very powerful compact rule with an amazing 22 scales!

Eye Saver Yellow (ES), black and red scales, aluminum construction, shown in the display box.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

(22 Scales!)
Front - LL1+, LL1-, A, [ B, ST, T, S, C, ] D, DI, K
Back - LL2+, LL2-, DF, [ CF, Ln, L, CI, C, ] D, LL3+, LL3-
SLIDE RULE
INFO / SCALES
Pickett

Pickett
N606ES
Metric
Converter


Pickett 606, CLICK for bigger PIC!

Click for bigger PIC
Click for bigger PIC of the OTHER SIDE

USA
6"/5" Pickett Metric Conversion Pocket Slide Rule.
Metric Converter and Simplex Trig format rule, shown complete in factory box with case, and manual. An incredibly useful rule, this has extensive metric conversion (including temperature) on one side, and a full function trig rule on the other. Even does fraction to decimal conversion. A wonderful little treasure.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

(15 Scales and Conversion Slide)
Front - K, A, [ B, T, S, CI, C, ] D, L
Back - Degrees F, Fractions, A, [ Conversions] A, Degrees C, Decimals
SLIDE RULE
INFO / SCALES
PICKETT
Pocket Aerial Photography
PICKETT
N700T


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USA

6"/5" USAF (A-2) Pocket Aerial Photography Slide Rule.
Shown in factory box, complete with unusual data window clip case, and rare full manual (covers both A-1 and A-2 formats). Pocket Duplex Rule, with full aerial photographic and conventional scales, very seldom seen in a pocket rule format. Intended primarliy for the USAF and US Army.

White, aluminum construction. Has full A-2 instructions on rear face, and a powerful folded scale set on the front. Very unique Pickett clip case, has a rear data chart inside a plastic window, extremely useful!

(16 Scales)
Front - L, A, DF, [ CF, CIF, T, S, C, ] D, DI, K
Back - Ground Size, [ Image size cm, in, FL, ] Altitude
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
800-ES

800-ES, Click for Bigger PIC!
CLICK for BIGGER 800-ES FRONT PIC

CLICK for BIGGER PIC OF 800-ES BACK

USA

JUST IN

12" / 10" Log Log Exponential Duplex Slide Rule
EARLY ROUNDED CORNER MODEL, yellow (ES) coated aluminum construction, black scales. This is a sophisticated rule made in the trademark aluminum body format by Pickett, it replaced the virtually identical N500 rule.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.
(22 Scales)
Front - LL2+0.1, LL2-0.1, DF
[ CF, CIF, L, CI, C ]
D, LL3+1.0, LL3-1.0
Back -
LL1+0.01, LL1-0.01, A,
[ B, ST, T, S, C ]
D, DI, K
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N800T

N800T, CLICK for BIGGER PIC
CLICK for BIGGER N800T FRONT PIC
NEW

N800T, CLICK for BIGGER PIC
CLICK for BIGGER PIC OF N800T BACK

USA

12" / 10" Log Log Exponential Duplex Slide Rule.
Shown complete in factory box with black leather case, "How to use Log Log Slide Rules" instruction manual and warranty certificate. White (T) coated aluminum construction, black and red scales. This is a sophisticated rule made in the trademark aluminum body format by Pickett, it replaced the virtually identical N500 rule. Black leather cases with gold embossed Pickett logo.

(22 Scales)
Front - LL2+0.1, LL2-0.1, DF
[ CF, CIF, L, CI, C ]
D, LL3+1.0, LL3-1.0
Back -
LL1+0.01, LL1-0.01, A,
[ B, ST, T, S, C ]
D, DI, K
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N803ES

Pickett N803ES, Click for bigger PIC
CLICK for BIGGER N803ES FRONT PIC


Pickett N803ES, Click for bigger PICCLICK for back side!


USA
12" / 10" Dual Base Log Log Duplex Slide Rule.
Shown complete in factory box with leather case, "How to use Log Log Slide Rules" instruction manual. Eye-saver yellow (ES) coated aluminum construction, black and red scales, dual log scale design with repeated C/D scales for ease of use, referred to as 'synchro-log' scales. This is a very sophisticated rule, made in the trademark aluminum body format by Pickett, complete with a gold embossed black leather case.

(28 Scales)
Front - LL0-0.001, LL0+0.001, LL1+0.01, LL1-0.01, DF
[ CF, CIF, L, CI, C ]
D, LL2+0.1, LL2-0.1, LL3+1.0, LL3-1.0
Back -
Sq Rt1, Sq Rt2, K, A,
[ B, ST, T, CI, S, C ]
D, DI, DFm
PICKETT
PICKETT
803-T

Pickett 803-T, Click for bigger PIC
CLICK for BIGGER 803-T FRONT PIC


CLICK for BIGGER 803-T BACK PIC

USA

12" / 10" Dual Base Log Log Duplex Slide Rule.
White (T) coated aluminum construction, black scales, dual log scale design with repeated C/D scales for ease of use. This is a very sophisticated rule, made in the trademark aluminum body format by Pickett. This early version has a slight scale change to the final N type, the position of the S scale is moved.

(28 Scales)
Front - LL0-0.001, LL0+0.001, LL1+0.01, LL1-0.01, DF
[ CF, CIF, L, CI, C ]
D, LL2+0.1, LL2-0.1, LL3+1.0, LL3-1.0
Back -
Sq Rt1, Sq Rt2, K, A,
[ B, S, ST, T, CI, C ]
D, DI, DFm
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N803ES/N600ES Set

CLICK for BIGGER BOX PIC
CLICK for BIGGER BOX PIC


CLICK for Set View
CLICK for Set View

USA

12" / 10" and 6" / 5" Dual Base Log Log Duplex Slide Rule Set.
Shown complete in slightly worn factory box with 2 gold emossed black leather cases, "How to use Log Log Slide Rules" instruction manual, Belt Loop accessory, and Warranty.

Eye-saver yellow (ES) coated aluminum construction, black and red scales, dual log scale design with repeated C/D scales for ease of use. This is a another Pickett 'twin-pack', made in the trademark aluminum body format by Pickett, complete with a gold embossed black leather cases.


(N803-28 Scales)
Front - LL0-0.001, LL0+0.001, LL1+0.01, LL1-0.01, DF
[ CF, CIF, L, CI, C ]
D, LL2+0.1, LL2-0.1, LL3+1.0, LL3-1.0
Back -
Sq Rt1, Sq Rt2, K, A,
[ B, ST, T, CI, S, C ]
D, DI, DFm
SLIDE RULE
INFO / SCALES
PICKETT
Marine Fuel Rule
PICKETT
N808-T

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USA

8"/6" Chevron Marine Fuel Slide Rule.
Very unusual 8 inch mid-sized Duplex Rule, with special fuel scales on front and reverse.

White (T), aluminum construction. Special Standard Oil scale design, copyright 1961. I have seen no other Pickett rule in this odd 8 inch size format, and the scales are quite unique. Color logo on reverse.

(15 Scales)
Front - API gravity, Specific gravity, barrels/long ton, [ CI, C, ] D, K, L
Back - Engler, SSu, SSf, [ std. bunker fuel, ] degrees F, degrees C
SLIDE RULE
INFO / SCALES
Pickett
Pickett
N902K-ES

N902K-ES, Click for bigger PIC!
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Box back, Click for bigger PIC!
Click for a BIGGER PIC!


USA
Complete Training Kit!

12"/10" Full Size Simplex Trig Slide Rule
Shown in the view-box, with case, and training manual, plus directions on the reverse of the rule!

Eyesaver Yellow, aluminum construction, very high quality, American Made, Pickett rule.

The perfect kit to train that new user!

(9 Scales)
Front - K, A, [ B, T, S, CI, C, ] D, L
Back - instructions, fractional/decimal equivalents

SLIDE RULE
INFO / SCALES
Pickett
Pickett
N902K-T

CLICK for a BIGGER PIC!
CLICK for a BIGGER PIC!


Box back, Click for bigger PIC!
Click for a BIGGER PIC!

USA
Complete Training Kit!

12"/10" Full Size Simplex Trig Slide Rule.
Shown in the view-box, with case, and training manual, plus directions on the reverse of the rule!

Traditional White, aluminum construction, very high quality, American Made, Pickett rule.

The perfect kit to train that new user!

(9 Scales)
Front - K, A, [ B, T, S, CI, C, ] D, L
Back - instructions, fractional/decimal equivalents

SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
904T

904T Decimal Keeper, CLICK for bigger PIC
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CLICK for OTHER SIDE

USA

DECIMAL KEEPER RULE!

12" / 10" Trig Exponential Slide Rule.
Decimal-Keeper Speed Rule, shown in factory box with leatherette sheath and manual. White coated aluminum construction, black scales. This is an unusual Pickett rule with order of magnitude scales, made in the trademark aluminum body format by Pickett.

This rule has normal scales, and on the reverse, the scales repeated for decimal location with an incredible 40 orders of magnitude! Great for problems with wide dynamic range, and fascinating to use and see.


(16 Scales !!)
Front - K, A,
[ B, T, S, CI, C ]
D, L
Back -
*K, *A,
[ *B, *CI, *C ]
*D, *L
SLIDE RULE
INFO / SCALES
Pickett

Pickett
N909ES
Metric
Converter


Pickett 909, CLICK for bigger PIC!
Click for bigger PIC

USA
12"/10" Pickett Metric Conversion Slide Rule.
Metric Converter and Simplex Trig format rule, shown complete in factory box with case, and manual. An incredibly useful rule, this has extensive metric conversion (including temperature) on one side, and a full function trig rule on the other. Even does fraction to decimal conversion. A wonderful treasure, the big version of the N606ES.

Note that the full Pickett teacher's manual that covers this rule and others is now on line HERE.

(15 Scales and Conversion Slide)
Front - K, A, [ B, T, S, CI, C, ] D, L
Back - Degrees F, Fractions, A, [ Conversions] A, Degrees C, Decimals
SLIDE RULE
INFO / SCALES
Pickett
Pickett
N1010K-T

CLICK for a BIGGER PIC!
CLICK for a BIGGER PIC!


Box back, Click for bigger PIC!
Click for a BIGGER PIC!


USA
Complete Training Kit!

12"/10" Full Size Duplex Trig Slide Rule.
Shown in the view-box, with case, and training manual, with advanced trig scale set!

Traditional White, aluminum construction, very high quality, American Made, Pickett rule. Has a gold embossed LEATHER slip case!

(17 Scales)
Front - K, A, [ B, ST, T, S, C, ] D, DI
Back - L, DF, [ CF, CIF, CI, C, ] D, DI

SLIDE RULE
INFO / SCALES
Unusual Metal Finish!

PICKETT
PICKETT
1010-MF

CLICK for bigger PIC
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CLICK for OTHER SIDE

USA

PROMOTIONAL METAL FINISH RULE!

12" / 10" Trig Slide Rule
Natural aluminum finish, with black scales. This is a seldom seen promotional version, made in the trademark aluminum body format by Pickett, but unpainted.

This duplex rule has a good complement of normal, inverse, folded and trig scales, and a very attractive, if somewhat low contrast appearance.


(17 Scales !!)
Front - K, A,
[ B, ST, T, S, C ]
D, DI
Back -
DF,
[ CF, CIF, CI, C ]
D, DI, L
SLIDE RULE
INFO / SCALES
PICKETT
PICKETT
N1010SL-ES
Super Power Trig

Click for Bigger Pic!
CLICK for BIGGER PIC


CLICK for OTHER SIDE

USA

12" / 10" Trig Slide Rule.
SUPER POWER TRIG Rule, eyesaver yellow over aluminum, with black and red scales.

This duplex rule has a good complement of normal, inverse, folded and trig scales, very attractive appearance.

Has 3 extra scales over the base model, including the double square scales.


(20 Scales !!)
Front - Sq1, Sq2, A,
[ B, ST, T, S, C ]
D, DI, K
Back -
L, DF,
[ CF, CIF, CI, C ]
D, DI, Ln

Key Data From Pickett Manuals (Collected and reproduced by Craig Kielhofer)

The following table shows how Pickett characterized their rules by industry sector and complexity. While many models are not shown in the table, it does give some idea of how Pickett developed and marketed different slide rule designs.


FIELDS OF WORK/STUDY SIZE of RULE
Length/Scale
ADVANCED
LOG LOG
STANDARD
LOG LOG
SIMPLEX & TRIG
BASIC FIELDS OF ENGINEERING
CHEMICAL & related fields 12"/10" 4, 3 803, 5001010, 902
6"/5" 600 1006
CIVIL and related fields 12"/10" 4, 3 803, 5001010, 902
6"/5" 600 1006
ELECTRICAL, ELECTRONICS and related fields 12"/10" 4, 3, 16 8031010, 902
6"/5" 600 1006
INDUSTRIAL 12"/10" 803, 800 1010, 902
6"/5" 600 1006
MECHANICAL & related fields 12"/10" 4, 3, 16 803, 8001010, 902
6"/5" 600 1006
PHYSICS AND OTHER FIELDS OF SCIENCE
BIOLOGY and related fields 12"/10" 803, 500 1010, 902, 125
6"/5" 600 1006
CHEMISTRY and related fields 12"/10" 4,3803, 500 1010, 902
6"/5" 600 1006
PHYSICS and related fields 12"/10" 4, 16, 3 8031010, 902
6"/5" 600 1006
MATHEMATICS 12"/10" 4, 3803, 500 1010, 902
6"/5" 600 1006
SECONDARY SCHOOLS AND MATHEMATICS 12"/10" 4, 3803, 500 1010, 902, 120
6"/5" 600 1006
VOCATIONAL & TECHNICAL SCHOOLS 12"/10" 4,16,3 803, 5001010, 902
6"/5" 600 1006
ECONOMICS & BUSINESS MANAGEMENT
ACCOUNTING 12"/10" 800, 500 1010, 902, 125
6"/5" 600 1006, 400
INSURANCE & FINANCE 12"/10" 800, 500 1010, 902
6"/5" 600 1006, 400
PRODUCTION & QUALITY CONTROL 12"/10" 3803, 500 1010, 902
6"/5" 600 1006
STATISTICS 12"/10" 4, 3525, 500 1010, 902, 125
6"/5" 600 1006
SALES Technical 12"/10" 4, 3803, 500 1010, 902
6"/5" 600 1006
SALES Non-Technical 12"/10" 1010, 902, 125
6"/5" 600 1006, 400
ELEMENTARY SCHOOLS 12"/10" 902, 120, 125

note that the first model in each type & size was the most popular model of Pickett slide rule

HOW PICKETT EYE-SAVER SLIDE RULES
SAVE EYESTRAIN -- AID ACCURACY


Chromatic aberration tests establish that Angstrom "5600" is the point on the spectrum for optimum eye-ease. Pickett Eye-Saver yellow green exactly duplicates this color value.

REDUCES EYE FATIGUE- Reds put the image behind, blues put the image in front of the retina. Eye-Saver "5600" puts the image on the retina and absorbs the actinic rays which produce "tired eyes."

AIDS ACCURACY- The contrast of graduations, and legends with Eye-Saver "5600" is sharp and distinct. Positioning of the slider and cursor is more exact and the reduction of fatigue combine to avoid error and improve precision setting and reading.

NO GLARE- under any light - bright sun, fluorescent or incandescent- Eye-Saver "5600" reflects long wave length rays. White reflects all colors, including the short wave length actinic rays, which create "hot" spots.

EYE-SAVER Yellow green (Angstrom 5600) is a Pickett exclusive that helps to prevent eye-strain headaches, improve slide rule computation speed and accuracy, reduce error and lower costs. It is available on all models of Pickett All-Metal slide rules.


Pickett Slide Rules are the World's Finest.
It is with pleasure that we welcome you as a new owner of a Pickett All-Metal Slide Rule.

Your Pickett Slide Rule is a precision instrument, embodying the finest construction, scale and operating features. You will prize this fine instrument and find it more and more valuable as your skill and understanding of its use increases. With proper care and use you may expect years of accurate service and satisfaction.

Thank you for this opportunity to be of service. May we wish you every success in your chosen filed of endeavor.

John W. Pickett

Detailed here are many Pickett exclusives and innovations that have earned educator approval, professional acceptance and the praise of scientists, engineers, and students.

80-inch Log Log scales are all on one side to save turning this rule over.
Range 10E-10 to .9977 and 1.0023 to 10E10.

Dual Base (tm) feature provides reading of logarithms to Base e and Base 10 from the same setting.

Pickett exclusive Ln scale puts powers of e, directly into combined operations.
Range from 0 to infinity with 3 or 4 place accuracy.

30-inch Cube Root scales are accurate to 3 places.

20-inch Square Root scale are accurate to 3 places.

20-inch Tangent scale, Sine, Sine-Tangent, Hyperbolic Tangent,
and Hyperbolic Sine scales are on slider for speed and accuracy.

C-D and C-CI scales on both sides save turning rule over.

Folded scales DF/M - CF/M and DF - CF

the above was shown with a Pickett N4-ES slide rule.
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