Morse Code Oscillator for CW Practice with 555 Timer

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United States Erik NonIdle
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Published on ● Video Link: https://www.youtube.com/watch?v=0DIRJ6NBR-g


Duration: 16:00
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Here is a simple circuit that uses the NE555 Timer IC to make an oscillator to practice Morse code with. When my PCB comes in from JLCPCB I will be 3d printing an enclosure for this circuit, so keep an eye out for that video in the future.

Bill of materials for this project:
1 - 9 or 12v battery (or similar DC power source)
1 - Battery snap (if using battery)
1 - NE555 Timer IC
2 - 20k Resistors
1 - 47 ohm resistor
1 - 50k Potentiometer
1 - 5k Potentiometer
1 - 22pF Ceramic Capacitor
1 - 22uf Electrolytic Capacitor
1 - LED (optional)
1 - 8 ohm speaker
1 - Telegraph Key, button, switch, or other way to complete the circuit.

Links to how the 555 circuit works:
Ben Eater -    • Astable 555 timer - 8-bit computer cl...  
The Learning Circuit -    • How 555 timers Work - The Learning Ci...  
Great Scott -    • Electronic Basics #26: 555 Timer IC  

#MorseCode #CW #AmateurRadio #HamRadio



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Tags:
Electronics
Circuits
555 Timer
Morse Code
CW
Amateur Radio
Ham Radio
Ham