I was reading a couple of interesting articles claiming that Edison was working on a device to record the voices of spirits just before he died. Has anyone else heard of this project before? Who has a Necrophone in their collection...? Fess up!
Fascinating! Percy Wilson, longtime editor of The Gramophone and amongst many other things the pioneer of the complex mathematics from which EMG and Expert horns were designed, was an eminent Spitiualist too. https://www.encyclopedia.com/science/en ... percy-1893
Yes! I have heard about these since I was a kid in the 1980’s, it was talked about in a tv show or documentary, I think it may have been a documentary on Harry Houdini. I can’t remember. I do not own one and have not seen one in person. I get a laugh out of my brother after hearing about such device, attempting to make what he called a “Dead-O-Graph”.
I would be interesting in know more about these machines.