Yes, Push-pull in this case, while we know the buggy SR and the HHU circuits resemble an H-Bridge.
Sure looks like a push-pull transformer schematic to me. Made lots of these, only I didn't use resistive wire, which suggests Stan learned something about copper not being an optimal conductor in his devices.
I did some testing on my own circuits to try and get the SR to work. I found two immediate problems that prevent the circuits from working:
1. As soon as you apply a pulse to one plate the other produces an image charge and you get pulsed electrolysis.
2. The polarization of the water prevents the plate from going to 0V when its switched off.
I added diodes and only positive switching between the plates and I still get an image charge that causes electrolysis...
Initially I didn't think the SR required chokes but after doing a few basic tests I changed my mind. However, I'm not sure the addition of chokes can prevent the image charge and polarization of the water.
There are a lot of other ideas that I have that I will try to address in a further video on my youtube channel.
I wish we had some specs on Stan's SR, without them I think we're really trying to do the impossible. Getting the WFC working is far easier than getting the SR to work since we actually have the WFC specs. If it were as simple as alternate pulsing between two plates we'd all be heating our homes with them.
IMO there is a lot more to the SR than Stan mentioned...