Randazzo Rife "Bubble" Tube

Shown here is a 20" Randazzo "Bubble" tube connected to my Twisted Transmission Line feed system.  Note how the end of the transmission line is "fanned out" and connected to the spiral wrapped electrodes near the ends of the tube.  The lower end of the coiled-ip transmission line is connected to a section of RG-8 coaxial cable (not visible in this photograph).  The coaxial cable is connected directly to the antenna tuned.  no balun is used in this system.  There is no direct connection made to the intenal electrodes of the tube.

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