The Horvath Patent shows how each stage works and gives part numbers, which today, can be superseded by more modern parts. A manufactured carb is not necessary and single barrel carb like the Carter, can be used with a side spud in jet, and aluminum adapter spacer under carb to mate to intake manifold. . The separation SS screens are not necessary. The output gases go through a mesh and then to a FAST check valve and on further to a safety water can with pop off cap. The second transformer TR2 has LAMINATIONS., not ferrite like TR1. The high frequency primary pulse of approx 22 Amp goes out as a CRITICAL POSITIVE DAMPED WAVE and without a diode on the SECONDARY side. The high frequency comes out and goes to a low efficiency low frequency core, and changes to a PLUS wave for DC without a diode. The center magnetic electrode was made in a machine shop using a FLYCUTTER tool on adjustable drilling machine..
The whole set up seemed too fancy for me, so years ago I looked into a cheaper, better way of electrolysis cell construction. High temp gray PVC thick sheets cut to make NARROW rectangular box with 6 sides and removable top. Very narrow, just to fit in 2 magnetic, knurled plates with knurled strips screwed on for flutes. The set of STEEL plates with knurling and flutes was sent to machine shop for electroplating with NICKEL. Narrow working gap in exact center of cell and mounted with SS screws. Large, strong, flat permanent magnets N + S on each side taped on with duct tape. The magnetic field at flute tips face each other at cell center, and the water space in between. The float module mounts on end with spacer baffle. The needed adjustable vacuum switch is now $42, or can use several cheaper used ones from junk yard of foreign cars. Lift hoods, and look on inner fender or on firewall .Look for the screw adjustment and wire connectors to identify as proper ones. The duty cycle of oscillator was .006 The duty cycle of cell operating was .42. 1/F = Period of cycle. duty cycle is on time / period time. Duty cycle of Inverter stage 50% or .5. The use of old style SCR allows for automatic shut off for the next pulse. I believe it was a GE 35 amp, 600v and high frequency only. This type of design of cell uses static type magnetic fields - not pulsing field. You need scientific calculator, inductor test meter, and analog needle type multimeter to be able to measure high frequency volts. Practice with formula for the cap discharge into TR2 primary coil of transformer. I pulse amps = E volts times square root of C farads divided by L Henries. 22A = 300 X square root of .000001 Farad / L. L = 1 / .005377 = 186 times 10 to the minus 6th Henries or 186 microhenries of primary winding of proper gauge insulated magnet wire. Resonance frequency LC = 1 / 6.28 times square root of L X C. Therefore, 1/2 of this is the positive waveform or 42 microseconds as the discharge of C5 into primary inductance L. Pulse width cell on time is 42 microseconds out of 100 microseconds.
To get a size of parts as in Patent, we knew the size of TR2 core. I put patent photo on adjustable photo copier machine, to get measurements of actual size of cell parts by various enlargements.
(Just the use of magnets can make hydrogen from water without wires or electricity!) You should already know this. If you don't, then write back.