Such a "true random number generator" is typically called a "noise source" in the engineering world. Think about the "fizz" you hear coming out of headphones or the speckles one sees in photographs taken in poor light. Or infamous noise of the Cosmic Microwave Background radiation:
https://en.wikipedia.org/wiki/Cosmic_mi ... background
If you really want such a noise generator you can make one really easily with just two transistors. As shown here: https://web.jfet.org/hw-rng.html
I have actually built that circuit. I works very well. I was compelled to do so because it seemed such a fascinating arrangement of transistors I had to see it working for myself.
There some problems with it though:
1) It is greatly effected by power supply voltage changes and unwanted signals on the supply, by temperature, by any electrical interference, magnetic fields, etc. These external influences must be removed so as to only show up variations due to the psycho waves you are looking for, they are surely much bigger effects than that.
To minimize that you would have to take the precautions mentioned in the link:
Of course all that shielding likely also blocks the psycho waves you are wanting to detect, thus ruining the experiment.encase the thing in a copper box surrounded by a mu-metal box, power it internally with two 9-volt batteries, and use the last inverter to drive an
LED that shines thru a hole in the wall of the box to an external phototransistor (better use a real fast phototransistor)
2) If you were to take a huge sample of the sequence of zeros and ones coming out of such a circuit directly and subject them to statistical tests of randomness you would find they fail. See: https://en.wikipedia.org/wiki/Randomness_tests
Most importantly there will not be a 50/50 balance of zeros and ones. There will be a bias.
Not only that there will be a frequency spectrum that is not flat in it's output. See "white noise", "pink noise" etc:https://en.wikipedia.org/wiki/Colors_of_noise
Arguably one could do the psycho wave experiments with that bias. Just observe how it changes over time. But you are going to have a really hard time measuring that bias, and other statistical problems, accurately. It will take a huge a lot of time and hours of statistical analysis with the programs available. Such bias and other statistical problems will vary over time anyway. Thus making it very hard to separate any psycho wave effects from natural variations. The experiment won't work.
3) Typically people who want a source of random numbers take such noise and do some processing on it. In digital logic hardware or software. Likely starting with a simple and fast circuit to remove the bias of zeros and ones and get an equal number of both. Like the Von Neumann method. See Von Neumann, famous paper here:
https://dornsifecms.usc.edu/assets/site ... p36-38.pdf
Of course when you start adding such hardware and software post-processing to achieve a 50/50 bias and fix other statistical issues you are no longer using the "true" randomness of your original noise source. Such post-processing therefore ruins the psycho wave experiment.
4) We could replace such a simple electronic circuit with something very much not affected by local PSU variation, temperature variation, magnetic fields etc. Say something quantum mechanical. Like listening the the "ticks" of radiation coming out of a radio active source.
But, if those psycho waves are so weak as be hard to detect by moving macro sized matter or electrons in a noise generator like the above I am very much inclined to think they are far to weak to affect what goes on in the nuclei of atoms.
All in all, I see no sensible way to make such psycho wave experiments in such a way that the could prove or disprove anything.
I urge you to build that noise source. It's fascinating. Just put an amplifier on it's output. Listen to it. Hear how it changes with supply voltage.
Then perhaps you will start to understand what you are up against with these psycho wave experiment idea.