Build the EM Theremin 

EM Editor in Chief, Steve Oppenheimer, worked with Bob Moog to develop this article; it took almost a year, but when it was done, they had a classic story. Read it here....

The Art of the Creative Short Circuit 

By Qubais Reed Ghazala

Build the EM -10/+4 Level Converter 

Peter Mosher

In the audio world, "professional" studio gear generally features line-level audio inputs and outputs on balanced, three-conductor XLR connectors, operating...