I believe Stans circuit with the chokes was to limit the current.
This is looking and related to the KOH and series cell.
At 2 volts the system is drawing between 2 and 5 amps.
At 3 volts the system is drawing between 20 and 45 amps.
The inductor (choke)/ resistor time constant allows the voltage to rise - without the massive amp draw.
It takes time for a choke to allow amp draw to pass through. It also drops the voltage as the current is limited.
So using a choke, verifying the time constant with the cell, and selecting the correct frequency you can apply whatever voltage you wanted and keep the amp draw low.
This prevents the massive current flow with a 1 volt change in the cell.
Here is an example for some clarification.
I have a voltage supply of 0 to 12 volts. I can pulse it on and off 50% duty cycle. The cell will draw 10 amps at 12 volts, but I want the amps to remain lower.
One choke time constant = L / R, inductance / resistance.
Each time constant allows 63.2 % change from total.
We tune the frequency to match 1 time constant of the system. So the choke will have power applied for 1 time constant and off for 1 time constant.
(the time constant (aka frequency) is variable with water resistance and choke size).
Here is the data for the frequency (on/off) and current in the cell (resistor).
Start 0 time.
On 6.32 amps
off 2.32 amps
On 7.18 amps
off 2.64 amps
On 7.29 amps
off 2.68 amps
On 7.3 amps
off 2.69 amps
On 7.31 amps
off 2.69 amps
On 7.31 amps
off 2.69 amps
On 7.31 amps
End.
This shows with the choke time constant and a 50% duty cycle the current will stabilize between 2.69 amps and 7.31 amps.
Remember in some of my experiments the water is a variable resistor - so to keep the current from climbing as we really crank up the voltage we need a pause or break in the cycles. Now we have Stan's pulse wave form.
Keep in mind my system with KOH is going to draw much more amps at 12 volts.
This is all still Faraday based, you apply 12 volts (on and off) but the choke only allows the cell to get 3-4 volts depending on the time constant, etc...
The only boost you may get is from the bifilar choke - I strongly believe this was just done to amplify the choke value more than 2 separate chokes.
I am about 2 weeks from getting the parts for experimentation on this setup, in the mean time comments are welcome.