How To Make A Homemade Electric Telegraph!

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Make a homemade electronic telegraph for sending morse code messages to family and friends. No soldering required.

Two pieces of cardboard (5x7 inches)
Two pieces of cardboard (2x4 inches)
Duct tape
Jumbo paper clip
Mini Buzzer
One short wire
Light bulb from Christmas lights
Three long pieces of wire (from Christmas lights)
An aluminum pie pan
"D" battery connector/holder.

***This video will give you step-by-step instructions on how to make your homemade electric telegraph***

Please click on the link below to view the circuit diagram after you're done watching the video.


I tried to post the diagram here in this box as an image, but it wouldn't let me.

Anyway, thanks for watching my vid. If you like the vid please give me a good rating here on instructables.com and MetaCafe.com. Thanks!

Johnny Rock Stah
<p>Would be great to see the video but it is not working</p>
<p>video not working</p>
<p>Pls fix your video.It isn't loading</p>
video is broken. please fix <br>
very easy and simple project
I'm a teacher, and wanting to make this, but where do I get a buzzer? I went to the local hardware store, and they were so very unhelpful.
Take a look at allectronics.com. They have buzzers, beepers, and transducers starting at $.75. A 9 volt buzzer goes for $1.25. Take a look at my Instructable about a communications activity/game - it shows you something you can do with a pair of Morse Code buzzers, etc.
it would be nice if it were wireles
send a txt!
i made this it was awesome
This is cool. However, I traditional telegraphs use what is called a &quot;sounder&quot; instead of a buzzer (even simpler than a buzzer, too). The sounder only makes a noise when the key is pressed and released (it's silent if you hold the down). The Morse code is transmitted as the quiet spaces <em>between </em>the clicks.&nbsp; Here's a link to give you the idea: http://www.youtube.com/watch?v=l9beMc-gDSw&amp;feature=related<br> <br>
Oh cool. Thanks for the video!
I think I'm gonna build one right now..... Oh man!! no more wire :| &nbsp;No buzzer :( &nbsp;Better get back to my little inventory and get more wire from my hardware store, and I wish we had radio shack (but we don't in the whole country) :((<br /> <br /> <br /> Nice telegraph by the way! Gonna get on with modifying it with proper switches and other stuff. Again nice telegraph :D<br />
hey wheres the writing to know how to put it all together dude
very cool and easy
I was looking for something simple for my students to do and this looks pretty good for that purpose. Cool!
dear mam, mam can i ask you some good titles for our investigatory project it must be manipulated examples machines please man i and my group need it to submit as our project dont worry im not intending something bad please reply as soon as possible i hope you kind and consideration for me but if you don't know anything please reply so i will know thank you very much man
whats a mini buzzer?
A mini buzzer is a small device that when charged with an electrical pulse buzzes until the transfer of energy stops. You can buy one at radio shack for $2.
My 11 year old daughter was intrigued by the ham radio guys at the AZ Science center who were teaching code. She made her name in morse code and wanted to do more. I wanted to avoid a complicated build but still have some fun. I think we will make this over spring break! Thanks for the easy and cheap idea!
thAT was very interesting
hahaha i love it man....
you're kidding me right. this is all i have to do? amazing!
Yep...that's all you have to do. It's pretty simple. Thanks for watching my vid. Thanks for the comment as well :) Johnny Rock Stah

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