As a first dabble into amateur radio projects, I decided to build a Morse code practice oscillator. I searched around for a suitable schematic that my scrap-bin could supply all the parts for. In the end I settled on a simple 555 based circuit from the ARRL, found here. The circuit produces a square wave so isn’t the best sounding but is good enough for practising.
![test on a breadboard](https://jackanderson.me/wp-content/uploads/2020/05/2020-03-26-21.13.09-scaled-e1588416451330-300x225.jpg)
First I built the circuit onto a breadboard. Once everything was working nicely, I transferred it to strip-board for a more permanent solution. I then 3D printed a simple enclosure to keep everything together nicely. I added a 3.5mm mono jack to allow quick and easy connection of a Morse key.
![completed circuit on strip-board](https://jackanderson.me/wp-content/uploads/2020/05/2020-04-01-16.21.10-scaled-e1588416484848-300x188.jpg)
![partial assembly into enclosure](https://jackanderson.me/wp-content/uploads/2020/05/2020-04-01-16.21.27-scaled-e1588416528706-300x236.jpg)
![Enclosure Assembly with Strip-board](https://jackanderson.me/wp-content/uploads/2020/05/2020-04-01-16.22.05-scaled-e1588416565236-300x213.jpg)
1 reply on “Simple Morse Practice Oscillator”
molto carino e veloce.