101 plate cell, G board and Toroid ..........

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A while back my total on my g board was 35millliamps. Not sure where my duty cycles were then. Now that they are set so low it might be less. I`ll ck. tomorrow and post back.

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Those are Hexfet Mosfets whatever that means.
Your rise and fall time are in triple digit Nanoseconds and a little higher on avalanche current or and pulsed current.
Not much difference.
The fet drivers are going to be different.
A while back he used optocouplers on the boards.
Looks like the MUR410's are rated at 4amp, with 150amp surge and have fast recovery rate in double digit nanoseconds.
The G-board has quicker rise and fall time.

I think the loads on the pulse supply from the 12v battery is going to be in the milliamps.
Was anything ever posted on the load of the 12volt supply to the primary's?

What type of FET driver is he using?
He never told me anything bout the load of the 12v supply to the primary's...  i havent got to wind a coil yet.

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Yes Mur410,s.
Look rather large like they can take some amperage.
The board has led's on each mosfet (IRF540Z).
Led on 12v  supply and led on 8v supply regulators.
Large MOV on DC battery supply.
3 pots per 556, PWwavelength, fine and coarse.
Didn't notice frequency??? maybe that's the fine and coarse adjusts.

mmm... frequency...  i think the duty cycle controlled that.... one pot would do a divide by,on the E board ther wer only 2 pots per 556

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Your fet drivers look like they are right after the 556's.
Are those IC's there? Are they 6 pins or 8. 6pin are probably opto's.
Duty is pulse width.
The other is frequency.
What is the number on the IC behind the 556 sockets?
Yours also has the 3 MOV's on the right back.

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yep those wer opto's..  pcp116

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Sometimes we are not stupid just the schematic...

I don't understand how pulsing different primaries with different frequencies would help.

You should before anything get some education about physics 3 ... don't worry is worth understanding what you'r doing before expending loads of money...

Sometimes we think of very complex systems and hope that they can work, but actually its just so complicated that we cannot decide why it would not work. Nothing that you cannot really exam profoundly deep can work.

Schematics must be clear simple and stupid. you must draw it many times in paper in many different ways and examine it until you have headaches.

Bob directions are indeed correct, but his diagrams don't do what he says. but does other things...

what is he doing in the end?

Don't take my word here, you must understand by yourself's otherwise i would need to guide you thru everything and i need people to come aside me not behind me.

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Hi,

I also have tried the BB toroid with my own designed board.
My answer on why he used three primairy's is that i dont know either.
However, the effect on the output of the toroid was that when all three frequency's were firing at the same time, you got the highest volts.
That way, you could see a step up signal.......
Three frequency's can be compared as using a shotgun, in stead of .22 amunition.


Steve

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I agree it would create a higher voltage when the 3 primaries are pulsing contemporaneously but this only mean that he is not reaching close to saturating the core with individual pulses...

I mean why simply don't hit simply at the resonant frequency?