26:10

TTT231 Pickett Slide Rules

25:47

Selecting a Slide Rule- Basic Student Slide Rule

19:40

Post Versalog vs. K+E Deci-Lon: slide rule showdown

8:08

Genius of Precision

19:13

TTT234 Dietzgen Slide Rules

14:35

A Tour of the Pickett Slide Rule Universe

13:57

Slide Rules: Keuffel & Esser vs. Hemmi & Post Versalog

15:13

Overview of fancier slide rules (folded scales, extended scales, LL scales)