The Paranormal Detector With Embedded Flux Capacitor

Yes Sir I the end of that title was taken from the movie Back to the Future. I was even in a band for a brief moment called CRM-114 which was the tag on the amp that Marty plugs into in the beginning of the film. CRM-114 was created and often used by Stanley Kubrick in his films. So what does that have to do with the instrument in question? Nothing, I just thought I would answer the question before it was asked.
The Detector was built out of an old truck horn, a mini cassette recorder, a stainless steel server knife, and a light shade. You can use the tape deck for both recording and playback. The lamp shade was used as a mute, much like you see on trumpets.