Relay calculators on youtube

A project log for Relay-based projects

A list of projects where the relays are doing some kind of processing or computing - i.e. something more than just switching a load.

Yann Guidon / YGDESYann Guidon / YGDES 12/11/2016 at 16:510 Comments

Covers the early electromechanical calculators :-)

The Harwell Dekatron / WITCH calculator, uses Dekatron tubes for storage and telephone relays for the rest. The oldest electronic computer that is still working !

The computational speed is crazy and tested "live" !

More links welcome !