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PICKETT   500   ( 10" / 25 cm Scales )



PICKETT, Chicago, Illinoise / USA                        (1945)
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SCALES  of the  ALL METAL   » ORTHO-PHASE LOG LOG «   Model 500
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Front Side                                            Back Side
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LL0     exp(-0.001X) .. exp(-0.01X)           L      lgX
LL00    exp(-0.1X) .. exp(-X)                 LL1    exp(0.01X) 
A       X2                                    DF     πX
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B       X2                                    CF     πX
T       tan(0.1X) ; cot(0.1X)                 CIF    1/πX 
ST      arc(0.01X)                            CI     1/X 
S       sin(0.1X) ; cos(0.1X)                 C      X
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D       X                                     D      X
K       X3                                    LL3    exp(X)
                                              LL2    exp(0.1X) 
REMARKS:
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This historic model is made of aluminum.  It came with no case.

                   Historical Remarks ...
impressum:
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© C.HAMANN  http://public.beuth-hochschule.de/~hamann  03/30/11