PICKETT, Santa Barbara, California / USA                    (1964)
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SCALES of the    » ALL METAL LOG LOG SPEED RULE «    Model N600-ES
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Front Side               [ inverse / RED ]               Back Side
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LL1      exp(+0.01X .. +0.1X);     LL2           exp(+0.1X .. +X);
[LL1]   [exp(-0.01X .. -0.1X)]     [LL2]        [exp(-0.1X .. -X)]
A                           X2     DF                           πX
------------------------------------------------------------------
B                           X2     CF                           πX
ST                  arc(0.01X)     LN                          lnX
T       tan(0.1X); [cot(0.1X)]     L                           lgX
S       sin(0.1X); [cos(0.1X)]     [CI]                      [1/X]
C                            X     C                             X
------------------------------------------------------------------
D                            X     D                             X
[DI]                     [1/X]     LL3            exp(+X .. +10X);
K                           X3     [LL3]         [exp(-X .. -10X)]

REMARKS:
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This pocket model is made of aluminum with a "Lifetime guarantee".
It came in a display box with leather case and a 96 pages manual.

This slide rule has the typical "Pickett-Yellow" body: The "-ES"
in the model number means "Eye-Saver"; Models with the "-T"-Ext.
(for "Traditional") have a white body.

On the box the term "synchrolog" stands for the combined LogLog
scales: They are designed as a uniquely, split long scale, and,
because LL+/- are reciprocal, 2. & .5 (eg.) share the same tick.

The N600-ES is famous for historical reasons: It accompanied the
astronauts on board of five Apollo moon flights...

                     Historical Remarks ...
impressum:
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© C.HAMANN      http://public.BHT-Berlin.de/hamann        12/14/06