Konstantin Raudive, amongst other occupations, was an EVP researcher in the 1960's and 70's. He wanted to devise a method of improving the quality of EVP recordings. Through experimentation, he found that using a Germanium Diode circuit instead of a microphone plugged into his voice recorder vastly helped improve the quality of these disembodied voices.
We have found that this Germanium Diode circuit is capable of picking up radio type waves and frequencies associated with modern communications technology in which spirits may use as a conduit to communicate. This crystal radio set uses a 1N34A Crystal Diode, a large inductor, and an antenna in order to provide a conduit to the spirit world. Plugs directly into your voice recorder in place of a traditional microphone. Sensitive to RF fields.
You will find that this device will not pick up your own voice or any noise contamination from your recording area. We highly recommend experimenting with this device.
VOICE RECORDER NOT INCLUDED!!