Poynt: Obviously you know all of the below, so this is just for other possible less-experienced readers.
Since there is no visible current return path from the screen back to the unconnected side of the battery at any time, the current flow is nil out of the output terminal. I figure connecting the output to one side of the battery or the other is pretty "direct" given that clear fact. I would expect the CMOS output voltage will be fully rail to rail under these no-load conditions (no measurable difference from using a relay).
I have simply replaced the large power-hungry relay with a micro-sized MOSFET based solid state SPDT relay. It just happens to be conveniently stuffed onto a chip which contains an oscillator and frequency divider as well! You see, every output on a CMOS device consists of a pair of MOSFETS, n-channel on the bottom rail and P-channel on the plus, which connect the output to one rail or the other. Same as a relay or solid state relay would. The resistance of the "contacts" is not important if the current being switched equals zero, as in the application.
It would be quite interesting to do a blind test, also including a third box which was empty but had an output terminal. I highly suspect the entire device is a placebo. But who knows for sure and does it really matter? Mental medicine is certainly a powerful healing force, according to studies. Placebo can heal if you believe in it.
But I am of the opinion that makers/sellers of placebo devices should strive hard to reduce the elements and cost of their products to an absolute minimum unless there is good reason, of course. Otherwise, placebo or not, they look like a ripoff profit-making con artist. Decker wants $500 or more for his deluxe unit. :
« Last Edit: 2011-01-18, 11:02:26 by humbugger »