After finally making a working Joule Thief today I set the unit on the dresser by my bed to test as a night light and the radio happened to be on. I didn't give it a second thought but when I touched the connection leads from the Joule Thief to the 1.5 volt battery it made static on the radio. So I got curious about this and tried a simple Morse code by touching quick for dot and a bit longer for dash and here I was sending code to my radio in the form of static. Why does this work and how? Is it the 2N3904 which is sending the signal?