Three original Rife Machines have been found. Find out how they really worked by reading:
The Rife Machine Report

Chapter #16

John Marsh's 1980's
Ray tube Rife Machine

1) Used a ray tube.

2) Carrier frequency was ?

3) Square wave audio frequencies modulated onto a sine wave carrier frequency.

4) Power usage was about 125 watts. Output to the ray tube about 25 to 30 watts.

This style of instrument was the last ray tube instrument design that John Marsh built before his death. He built the two different models shown below in the photos. His nurse has the instrument shown in the above photo with John Marsh, and it is still working. The instrument that she has uses the same square wave low audio frequencies that were used in the 1950s AZ-58 Rife Machine. John Marsh had these instruments built using a vacuum tube for the RF carrier frequency. The audio frequencies in the instrument with the dial were crystal controlled and the dial had 13 different positions for the 13 audio frequencies that he used. The other instrument in the photo below, on the right, had a solid state variable audio oscillator with a digital readout for displaying the frequencies.

The ray tube used with this instrument has an interesting design. The fact that this instrument is still being used even after about thirty years speaks of its quality construction. Below are some current photos of the front and back of this instrument.

John Marsh also built many pad instruments through the years. Below are three photos of some that he built. He strongly believed in both types of instruments and mostly promoted the pad style instrument because almost anyone could afford to purchase one. Most people who know about John Crane had no idea that John Marsh was still actively promoting Dr. Rife and his work.