Keuffel & Esser N4083-3  
Written by Accutron on 2017-07-05  

The Keuffel & Esser N4083-3 is a powerful 24-scale log log duplex vector slide rule, based on their popular 4080-3 and 4081-3 log log duplex models. The N4083-3 omits the K scale of the 4081-3 in favor of three vector scales, used to calculate sinh and tanh.

Available Scales: LL02 LL03 DF [CF CIF CI C] D LL3 LL2 ||| L LL01 LL1 A [B T Cot ST S Cos] D Th Sh2 Sh1

Keuffel & Esser N4083-3 simulation, adapted from the Virtual Slide Rule script by Derek Ross. Click stator to reverse.

Keuffel & Esser N4083-3 log log duplex vector slide rule, obverse view.

N4083-3 slide rule, reverse view.

This article is part of the [Slide Rules] exhibit.

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