PICKETT, Alhambra, California / USA Made ca. 1965 ***************************************************************** for the CLEVELAND INSTITUTE OF ELECTRONICS, Cleveland, Ohio/USA S C A L E S of the » ALL METAL ELECTRONIC « Model N-515-T ================================================================= Front Side [ inverse / RED ] ================================================================= [ (Lr) H ] 1/( (2π)2 * X2 ) (Fx) 2π X/2π A X2 ----------------------------------------------------------------- (Cr) B X2 S sin(0.1X) ; [ cos(0.1X) ] T tan(0.1X) ; [ cot(0.1X) ] [ (Lx or Cx) CI ] [ 1/X ] (xL or fr) C X ----------------------------------------------------------------- (xC) D X L lgX Ln lnX Back Side: ================================================================= » Reactance & Resonance Decimal Point Locator « - Slide Rules & useful Formulars and Constants... REMARKS: ================================================================= The "-T"-Ext. in the model-number means "Traditional white". This model is made of aluminum. It comes in a beautiful red- brown leather case, with golden inscriptions » PICKETT « & » CLEVELAND INSTITUTE OF ELECTRONICS « . It can be clipped on the user's belt - typical for the USA: As seen in the "Western Movies" ready for a "quick draw". This slide rule is specialized to solve resonance-frequency and -circuit problems: The H-Scale gives the LC-product for a choosen frequency on D-Scale. The 2π-Scale is for inductive and capacitive reactance problems. The slide rule was part of a CIE course and the description how to use this scales is to find in the course materials CIE, Vol.III p.52-68 ===>>> PICKETT N-515-T http://sliderule.ozmanor.com/man/man-download.html Historical Remarks ... impressum: ***************************************************************** © C.HAMANN http://public.BHT-Berlin.de/hamann 12/13/06 |