Ask me a question

You can leave public comments on all the articles on this site. But you have to sign in with facebook, twitter, google, apple or your email to leave a comment as this will help reduce spam. Comment service is provided by If you don't want to sign in or leave a public message use this contact form to to send me email. This form will route thru I don't collect any private information. And if it is a worry, you can always lie.

About me

My name is Teppo Gustafsson. Amateur at everything. I've been making electronic things for well over thirty years. I started out with batteries and lightbulbs, build many kits in the 90s and got tangled up with effect pedals and other guitar related stuff in early 2000s. I made my first computer "game" with Commodore64 Basic (38911 BASIC bytes free) in 1988, and it has been downhill ever since.

I don't do commissions, but I have extra PCBs for most of my pedals. So, if you want one send me a message and ask. It makes me very happy if you've decided to build something based on my work. And if you have trouble sourcing components for your pedal project, like some germanium diodes (e.g. 1N270) or TO-99 package opamps I might be able to help you.

I share my software things as a hobbyist programmer, exploring the worlds of Arduino and JavaScript. I create simple games and enjoy learning more each day. While I'm passionate about these topics, please note that I'm not available to offer programming assistance or advice. Thank you for understanding, and I hope you enjoy exploring my projects and experiences!


I'll always try to answer questions and help if I can, but I'm not going to participate in prolonged e-mail exchanges or step by step personal instructions. If you've build things correctly, they will work correctly. Every project presented on this site requires prior knowledge and experience. Sometimes in both hardware and software. And if you construct any mains operated equipment it is 100% at your own risk. Follow your local regulations.