This was the easiest part of my project by far. The case was something I had been given by a friend and I have been wanting to use it in...

Here is where I ran into some PROBLEMS. At some point during my design process, I dropped a very important resistor from the design. ...

Next I decided to add two extra octaves to my keyboard. This can be done with either a frequency divider or a frequency multiplier: I...

Many weeks later.... I have come up with the final design for sound generation (the keyboard). I decided on 12 separate 555 timer...

Once I had chosen a basic design, it was time to start dialing in the tone generation. I would need 12 555 times, one for each note. I...

This was the first draft of my synth, I followed a post by lonesoulsurfer: https://www.instructables.com/Moog-Style-Synth/ I decided to...

Originally I wanted to use voltage-controlled oscillators for sound generation. This is the classic synth method, used in the original...