My name is Jonathan Feucht, and welcome to my home page! I live in Arlington, WA, and work as a professional electrical engineer. I also work as a freelance musician in King, Pierce, and Snohomish counties. My hobbies include playing the piano and organ, photography, backpacking/camping, and riding my road bike.

This site is intended as a showcase for various electronics and music-related projects I've worked on over the years. I developed this site using my meagre knowledge of HTML, JavaScript, PHP and SQL, which I learn mostly online. Much of the graphics editing has been done using Corel Draw.

Much of the content on this site is a bit old, and may be too technical for my typical audience. More content is planned for the future. To begin, select one of the links in the table of contents below.

Site contents:


Old blog site - Last post from July 31, 2010

Software Projects

Sliding Puzzle game - ***NEW***

jGraph JavaScript tool

Electronics Projects

Renesas M3850A Programmer

Front-Panel Computer


My Résumé - Updated September 09, 2011

Quasi-static Feedback Analysis (pdf) - September 08, 2011

Derivation of Half- and Double-Angle Formulae Using Euclidean Geometry - July 30, 2011

The Mystery of the Bouncing Ball - July 08, 2011

Analysis of Full-Wave Bridge Rectifiers (pdf) - October 04, 2010

Designing a Graphic Equalizer (pdf) - April 24, 2009


My YouTube channel

LinkedIn public profile

FaceBook page

General comments, suggestions, and criticisms about this site are welcome. Some of the pages listed above have comment forums, so please leave comments if you find anything interesting. You can send me comments at the email address at the bottom of the page. Also, if you find dead links, errors, typos, or inaccurate information, please inform me.