If all Stan's grounds in Figure 5 were connected to each other then it would look similar to Dave's picture above, and based on the labels in Figure 5 and the other information in the patent, it is labeled "20", which is the only label given to his grounds, so they may all be common ground/connection.
Now the question is, are they 'just' all connected to each other? or
Are they grounded to an actual ground somewhere?
Maybe it doesn't matter?
Dave doesn't show Stan's amp inhibitor resistor, or his tuning resistor, and this is supposed to be a key part of the set up as described in the patent.
We know that the amp inhibitor resistor was replaced by the bifilar chokes, so in either Figure 5 of Dave's circuit, you could put the chokes in the appropriate location.
Of course i'll be winding my chokes inside the alternator... I may try a few other things like this with my standard Delco alternator.
Also, a detailed reading of the patent suggests to me that Stan was only pulsing the alternator for gating, while Dave was pulsing it with a high frequency as well as a gating frequency. Only pulsing it for gating solves the issue of pulsing the rotor at a frequency higher than the normal output frequency due to the rpms.
If you pulse it faster than it's normal output frequency then you are chopping it up, and that would be messy, which is why It never sat well with me to pulse the alternator... however tests will be done... maybe the RVIC has a frequency that it likes more than others and gives better production.
Stan also talks a lot about the resonant cavity phenomenon, where the pulsing matches the wavelength to the spacing of the tubes and so on. So if you can get this effect with the gating, then all the clues add up, however you need extremely uniform spacing on all your tubes! especially if they are in an array.