Preisvergleich für Morse Code Receiver in Deutschland bei Shoppdeal.de in September 23, 2019
This is the ACTUAL device used to demonstrate telegraph to congress. This unit sent "What hath God wrought", the first message sent by Samuel F. B. Morse to officially open the Baltimore-Washington telegraph line on May 24, 1844. This was the beginning of the internet! It also made Ezra Cornell a...
It's a morse code receiver base on processing the light signals.
With just a few items you can build a Telegraph! Very cool to do for a science fair project. Enter to win $100 gift card- Subscribe and Enter to win! http://gimmyit.com/giveaway/100-gift-card-giveaway/