Wrong Heironymous
FYI: The inventor of the Heronymous machine, for which he received a patent, was named T. Galen Hieronymous. Hieronymous Bosh (1450-1516) was a painter, not a tech.
The device itself was nothing more than a three-stage pentode amplifier with a glass prism input and a friction plate output.
I built one about 30 years ago. All it was really good for was heating up the room and interfering with my neighbors' TV reception. The inherently high gain made the amplifier unstable, and it would break into oscillations at random intervals.
-Fnord of Dyscordia-