The STOP button of the Marchant ACT-10M calculator
Channel: Jaap Scherphuis
Date: 2021-02-20

Here are some subtle and unusual ways that the STOP button of the Marchant ACT-10M calculator is used. I'll also show what happens when you try to divide by zero.


Other related videos:
The Marchant ACT-10M mechanical calculator: https://youtu.be/j88JslB67fU
Marchant ACT-10M doing division in slow motion: https://youtu.be/imGteh7YUGY
The Marchant XL: https://youtu.be/ewLT2s4THG0

For more information on this machine and other calculators in my collection, please visit my website:
https://www.jaapsch.net/mechcalc/

0:00 Introduction
0:18 Power cord
0:36 Releasing keys
1:15 Stopping a division
2:05 Resuming a division
2:57 Adding two division results
4:13 Adding to division
4:42 Transfer from counter to register
5:51 Stopping division by zero
6:39 Outro