Introduction: Scout Project: How to Make a Morse Code Oscillator/ Telegraph Machine
So, please as i said go and check the original video after checking this I'ble out, and I hope it answers some of the questions raised. For those who are interested this I'ble should cover the practical part of the Scout Associations Communicators badge:
Alternative B - Communication codes
Send and receive a short message by Morse code or Semaphore at a rate of five words per minute.
When sending and receiving a message, demonstrate that you know the appropriate procedure.
Know the International Phonetic Alphabet and define at least eight international Q code signals.
Construct a simple Morse code oscillator and send a short message.
I want to make perfectly clear that I got my Idea from www.instructables.com/id/How-To-Make-A-Homemade-Electric-Telegraph!/ this Instructable... It is VERY clever, I made one myself after watching the video, and decided to fill a badge requirement of my Scouts to get them to make one in wood. So please go have a look at the original I'ble as :johnnyrockstah is brilliant... really... just brilliant! Due to me using :johnnyrockstah 's idea I'm not going to explain how i made the battery box (which is also from :johnnyrockstah ) If you want to see how its made please go and have a look at the link.
Step 1: Ingredients
Right well, to help you find items used I am going to give you the Maplins product codes I have also lifted a few pictures from their site so as you can identify them quickly
* Plyboard I used a 3mm ply, nothing special, its just a tatty old peice left over from a long ago project
* Tacks/ Nails
* Tacking hammer
* Work bench
* Aprropriate Safety gear- This I shall leave to you, providing you have the same ammounf od fingers as what you started with you should be okay
* Soldering Iron
*Long nose Plyers
* Glue gun (maybe)
* Duckt tape/ Insulation tape
Morse code machine componants:
* D Cell (1.5V) battery
* Alluminium (not AH-LOOM-IN-UM...AL-UH-MIN-I-UM) pie trays ( People in the UK places like Wilkinsons, or Poundland sell them, alternitivly you can use the ones from yout local takeaway... providing they havent any curry left in them ;) )
* 6V Buzzer FK81C
* One LED WL84F
* Black Wire XR68Y
* Red wire XR69A
Componant cost: £5 (ish)
+ Ice for amputated finger
+ Aloe Vera plant for burns
Step 2: Saw !
What we need to do first is cut out the base and clicker for the machine.
If you intend to make a single/stand alone unit only cut out one base and one clicker, If you intend to make a send/receive unit, cut two of each
Firstly take your ply board, and after measuring a 5" by 7" rectangle cut it out using your saw. I then cut the clicker section this time cutting a 3" by1.5" rectangle. I also cut a small square section that will act as a spacer between the base and the clicker. (See photo 3 if you can't figgure out what i intend to do)
Step 3: Connect-em-up!
Before you nail ANYTHING down your going to need to glue/tape or otherwise affix toy aluminium conductors onto both the base and the clicker.
I found that when it somes to wireing up your telegraph the more wide you make the conducting tab (within reason) the easier it is to attach the wire securely
As you can see from my pictures i cut all mine into L shapes as when it came to wrapping the wires, i found i could get a much better contact.
Step 4: Placement
Regardless of if you are making a stand alone unit or a two way unit, your going to need to think about placement...
It is now at this point when you can nail down your switch (see picture)
Step 5: Wires!
so now you have the buzzer section pretty much glued down, your going to need to add the wires in the next two steps. This step is to give you an idea how to do it to get the best possible connection, see image three for how i did it
Step 6: Stand Alone Unit
Okay so for just a sound buzzer circuit/ setup.... all you need do, is to wire your switch between your battery abd buzzer like in the circuit diagram provided.
If in my second picture i where not making a dual way receiver, I would run a wire from the buzzer to the switch and from the switch to the +VE side of the battery
Clear as mud?
Step 7: Dual Way Receiver
Okay in the original I'ble I had a REAL tough time working out what was connected to what, so hopefully from my little diagrams you can see how its all connected up?
REMEMBER when soldering an LED you will need someway of protecting the LED itself from the heat from teh solder, to creat this heat sink, grip the LED in a pair of metal plyers to draw the heat away from the filaments see pic 4
If your like me, nows the time to go and treat your burn off the soldering Iron with your AloeVera plant.... Goon ...we'll wait
Step 8: THE END!
Well... That is it... Hope it helps you understand the Original Instructable a little better... please let me know if you have any questions or whatever
All the best
Here is a good Phrase for your scouts to transmitt:
--- -. / -- -.-- / .... --- -. --- ..- .-. / .. / .--. .-. --- -- .. ... . / - .... .- - / .. / .-- .. .-.. .-.. / -.. --- / -- -.-- / -... . ... - /
On My Honour I promise that I will do my best
- --- / -.. --- / -- -.-- / -.. ..- - -.-- / - --- / --. --- -.. / .- -. -.. / - --- / - .... . / --.- ..- . . -. /
To do my duty to God and to the Queen
- --- / .... . .-.. .--. / --- - .... . .-. / .--. . --- .--. .-.. . /
To help other people
.- -. -.. / - --- / -.- . . .--. / - .... . / ... -.-. --- ..- - / .-.. .- .--
And to keep the Scout Law
We have a be nice policy.
Please be positive and constructive.