/technologies/embedded/b/blog/posts/transforming-old-microphones-into-an-emergency-radio-system-has-its-challenges(Image credit: Element 14 via YouTube) Engineers and makers have been repurposing, or upcycling, old electronics for decades. In the 1950s and 1960s, resourceful people would modify old military surplus electronics left over from WWII for everything.en-USTelligent Community 12