In this video we look at the Facit NTK Mechanical Calculator from 1957! In this video we answer some questions from the last Facit NTK Mechanical Calculator video. I explain how the decimal place markers work and what happens when you divide by zero! Further information John Wolff’s excellent website User manual (PDF) I refer […]
![Facit NTK](https://dariancabot.com/wp-content/uploads/2016/05/facit-ntk_darian-cabot-812x356.jpg)