Building a telegraph is a great first electronics project. A simple telegraph requires nothing but a switch, a few wires, a light bulb, and a buzzer. Build two, and you can practice sending coded messages to… More »
Difficulty:
Easy
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HOW TO BUILD SIMPLE TELEGRAPH SETS. W1TP TELEGRAPH & SCIENTIFIC INSTRUMENT MUSEUMS: http://w1tp.com; Prof. Tom Perera - W 1 T P - Historian and Collector ... Before you start to build a telegraph set, I STRONGLY SUGGEST that you read HOW A TELEGRAPH SET WORKS. This LINK describes the THEORY and OPERATION of the...
chss.montclair.edu/~pererat/perbuild.htm chss.montclair.edu/~pererat/perbuild.htm
HOW TO BUILD A SIMPLE WIRELESS TELEGRAPH SET; W1TP TELEGRAPH & SCIENTIFIC INSTRUMENT MUSEUMS: http://w1tp.com; Prof. Tom Perera - W 1 T P - Historian and Collector ... HOW TO BUILD A SIMPLE WIRELESS TELEGRAPH SET;
chss.montclair.edu/~pererat/perwirls.htm
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・ 1 Match the voltage of your batteries with your components. For example, if you pick out a lamp that... ・ 2 Wire one end of the battery holder to one end of the switch terminals (the switch will have two terminals)... ・ 3 Cut two lengths ...
http://www.ehow.com/how_2244051_build-a-telegraph.html
Many science-related websites and books dealing with experiments in electricity and magnetism, especially those written for children and teens, have articles on how to build a telegraph set.
www.sfu.ca/~achanne/projects/Telegraph%20Sounder/ www.sfu.ca/~achanne/projects/Telegraph%20Sounder/
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・ 1 First use the sand paper to shave off about a quarter inch of the rubber insulation from both ends... ・ 2 Next, pick up the battery and notice that there are two ends (a.k.a. terminals) labeled either positive... ・ 3 Take the nail and w...
http://www.ehow.com/how_5416539_build-small-telegraph.h...