Internally, a radionic device is very simple, and may not even form a functional electrical circuit.[1] The wiring in the analysis device is simply used as a mystical conduit.[16] A radionic device does not use or need electric power, though a power cord may be provided, ostensibly to determine a "base rate" on which the device operates to attempt to heal a subject.[17] Typically, little attempt is made to define or describe what, if anything, is flowing along the wires and being measured.