what type of soldering point do you use?

I use an "Aoyue 2702 SMD Professional Repair & Rework Station".  I had to get serious about some surface mount work a couple of years ago, and that station has been a terrific investment.  It is pretty cheap for how well it works.  If you actually want to start working with surface mount, plan on buying an observation microscope.

http://www.thehydrogenshop.com (referenced above) looks pretty good.  As far as I can tell, it's still just one-way PWM, no PLL closed-loop feedback is involved.  The microprocessor version is cute.  He's open about the design, that's great!

I have some pretty lofty plans if this works, like completely overbuilding the control unit.  PIC chips and ASCII LCD screens are one way, but you can get a lot more control and real estate using a microcontroller with wifi and a web server.  Here is a pic of my last project: ( http://www.darkhq.com/bb/files/pimp-a-sketch-linux.jpg ) which might become the control computer for this one (see http://www.gumstix.com/ ).  Meanwhile, I don't even have a cell working yet, much less a working PLL circuit.  Money talks and BS walks, so back to my workbench I go!

Here ya go guys, Ravi has advised us what to re draw for the Meyers VIC.

Ravzz' full VIC
http://img378.imageshack.us/img378/2397/completecellwiringdiagrdj9.gif

(He is proof reading it now)

http://img368.imageshack.us/img368/4058/74501320xm0.gif (inductor Schemo)
http://img368.imageshack.us/img368/4612/17573941so2.gif(Alt)

http://img70.imageshack.us/img70/7576/coldcurrentcircuitgn6.gif
(cold current)

WE will test this when our new cell is ready

http://img378.imageshack.us/img378/9173/freqgennn9.jpg
our Freq Gen

http://img212.imageshack.us/img212/7866/setup1kr8.jpg

This is our [old] cell and Freq gen too. These will be going in the
new write up, we have a guy working with us and Ravi to get this OPEN
source replication done.


Ash

Ash,

Thanks for the schematic.
Some comments:
1. Even though it won't make much difference, R2 should probably be the same as R1 (100 ohms), minimizes on different resistor values.
2. Picture shows that rotary range switches are being used, i.e., S5, S6, S7 is just 1 rotary switch, so C8, C9, and C10 should probably be different values.

In my test, Q1 drain has random spikes of over 100 volts, so would be a good idea to add a capacitor between 13.8 VDC and ground if circuit is installed in a car to avoid interference with car electronics.

Impressive.

Ash,
Great information, thanks.

I'm currently in the process of ordering components to begin testing, I do have one question I will be using a HP 3312A function generator to delver my pulses, my setup will be very similar to what JLN is doing do you see any problem with going this route?

Thanks,
Matt

Thank you Ash, for the info.I appreciate your efforts. I noticed in the Ravii pdf, the chokes are wired in a way to enhance the magnetic flux. The current is flowing in the same direction in both windings. I have also noticed, Stan used a non-inductive style coil drawn for the original VIC circuit. shown here...
(http://img61.imageshack.us/img61/1892/meyerbifilarfq4.jpg)

Remember the Genesis Project? http://www.geocities.com/nayado/  A quote from that page...

"By sending an electric current into the non-inductive coil around which electrified into negative, it is possible to induce the opposite self-induction phenomenon. In this time, positive and negative energy are pulled apart from nil. The positive energy appears as an electric power, and the negative energy appears as the effect of cooling and anti-gravity."

Is this why Stan wired the chokes this way? Would it solve Ravi's heating problem? Come to think of it, the GEET utilizes this Tesla technology too, only with vapors. Scalar waves perhaps?

Not exactly Stanley replication as WFC is made of flat plates. Anyway, here are some scope screenshots:

Top trace is the gate. Note: Choke is actually not bifilar but junk box TV EI ferrite core line filter.
http://img77.imageshack.us/img77/6861/gatedcelldrivebifilarchml0.jpg

Across the cell electrodes at a certain low frequency.
http://img244.imageshack.us/img244/9990/celldrive1aanodeandcathoe3.jpg

Across the cell electrodes at higher frequency.
http://img210.imageshack.us/img210/9341/chokedhighfreqdrive1akv1.jpg

All of the above from this setup which is just starting to be conditioned.
http://img237.imageshack.us/img237/2600/img5068ahb7.jpg
WFC is 24 parallel plates immersed in tap water inside a used plastic candy jar.
Flat wire to electrodes is heavy gage speaker wire.
I know I should have potted the exposed copper wires in RTV, but I am too lazy. lol.

This is fun learning this stuff. Thanks to all who are contributing.

This seems like a good source for ferrite toro?dal core and wire https://www.amidoncorp.com/categories/7 now which core should I get?

They also have ferrite rods, which one of these would be the best https://www.amidoncorp.com/categories/6?

Thanks,
Matt

Good find. I am going for the rod as it is hard for me to hand wind on toroids.
Thank you.

*** double post ***