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“My first observations positively terrified me,” Tesla said about the radio in 1901, “as there was present in them something mysterious, not to say supernatural, and I was alone in my laboratory at night… The sounds I am listening to at first sound like human voices conversing back and forth in a language I cannot understand.”
– Nikola Tesla 1901

The Tesla Spirit Radio is many things in one. As a crystal radio set, it is inherent that those frequencies associated with EVP have been captured. Much like the Raudive’s Crystal Diode Receiver but with specialized Tesla coil antennas and a variable capacitor.

The use of an Amplifier is highly recommended as the TSR has no power of its own. Use the TSR as you would a Microphone. Plug directly into your media (voice recorder, computer software etc) OR into an amplifier and then to the media

The Tesla Spirit Radio Kit includes (as shown in photos):

  • Jar
  • Lid with connectors
  • Two Tesla Coils Black and red
  • Variable capacitor
  • Line out chord

Here is a video of my first initial test with the Tesla Spirit Radio. I received a response in the very first minute. I hooked up to Adobe Audition CS6.

For EVP use, you can connect the audio output cable to an amplifier, voice recorder or computer program like Audacity or Audio Hyjack (for MAC). The Tesla Spirit Radio is more than just a crystal radio circuit in a jam-jar. It’s a sound maker that plugs into a computer and makes awesome spooky sounds by responding to electromagnetic fields or light sources in real time. Although Tesla used different parts, this radio’s basic L-C (Inductor-Capacitor) circuit uses a similar schematic to what Tesla experimented with in his early days. The versatile 1N34A crystal germanium diode used here, substitutes for the tricky rotating nickel detectors and sensitive relays, used by Tesla in the late 1800’s.

You can listen to AM broadcasts with this radio, but it was made to be used in other ways. (Besides, AM radio wasn’t exactly what Nikola Tesla was interested in…in fact, he believed it was a waste of energy to transmit and receive Hertzian waves!) By using a program like Audio Hyjack Pro (Mac), the radio’s output is tweaked at the computer to give some great real-time sound effects…and you can record them at the same time.

Weight 1 lbs


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