Man this paper tells us that meyer was not even generating hydrogen, he was actually transforming the water into fog creating an explosion.
So he used the resonant tank as a mean of accumulating enough energy to discharge all in once into the water.
so lets take the prof we need to build a simple injector and a resonant tank and try to run an engine with it!
i shoot that we need at least 20kv about 10 amps circulating for discharges!
Cool hope its that easy!