The title says it all. Just a week after the USA got the Android 4.1 Jelly Bean update, now Canadians can join in on the fun. Start mashing that update button!

As you can see, my 12AU7 vacuum tube headphone amplifier/preamp based on a single ended class A design is finally finished! Since the last time I posted about this project, there have been a few changes and additions. I added a nice bright blue LED into the tube socket as a power indicator. I also […]