NOTES 

Another thing about this inductor,

A few Builder have said they  hit resonance with the 8xa,at what freq?

because 54 turns is very few turns,small coils resonate at very high freq...Also JL naudin hits resonance with a bif coil similar to Stan's but at 47Khz,Tony with 4H bif coils.....Cheers!!!

the inductor here is what stan used in his 8xa, so it will work with the big tube set. a tank circuit, is what i have told everyone, and what meyer descibes. in a tank circuit, there are 3 variables. inductance, capacitance, frequency. take this -------------------------- x ----------- y ---------------------------------------------- z lets call them xyz x is frequency y is inductance z is capacitance -------------------------- y ----------- x ---------------------------------------------- z -------------------------- y ----------- z ---------------------------------------------- x

these will all resonate it is just like tuning in a radio. as i have said. to listen to your favorite station, you have to tune the radio to resonate with that station in this case our favorite station is 120hz. rectified house power. tune the radio in to match. in meyers battery circuit, our station is 5khz

NO! not in this instance. the scr chops rectified power at the "bump" in the pulse. the scr simply will not function as faster then 120 hz. the pulse train is the 120 hz, the scr makes the gate. resonance is not a magic frequency, resonance is a matched frequency with all componates. tony talks over and over about AC...........AC does not make HHO scr s will latch if not used correctly. the 8xa circuit is 120hz main frequency, and the scr cuts off that frequency, as a gate. the 8xa is a tuned circuit to match 120 hz. on time of the pulse train is the same as the off time.............this is the 8xa circuit, using the 9xb driver with an scr. i stand behind what i say here. this is fact. it works just like tuning a radio

CORE PERMABILITY 

i still use the first cores i wound. i believe they were ec 52

CORE NOTES 

if your core is straight then you have losses out the ends. if you have a teroid, the flux lines stay in the ring. if you have a closed E and I core, the flux tends to stay in the core, mostly, with limited losses. i think what bussi was telling you, is your core will have a huge gap, because the magnetic flux would want to flow from the center core to the side core. when you gap a Ecore, there is a loss at the gap. a small gap can be fine, a huge gap is a huge loss. there is some point that the gap is just too large. however a straight core is more like a magnet. when we get into higher frequencies and skin effects, this is different then a saturated core effect. the welding rods act as a laminated core, and yes open ended. the key to all cores are saturation and reflection, as well as magnetic loss, and reabsorbing the flux they sale a magnetic paper type material. you can view the flux lines in the paper. it is fairly cheep

Core Gap

here is a good video that i think may help you for it did me. When he gets to showing the inductor, capacitor and the lite bulb part as he says pay close attention to what he is doing. Pretend the lite bulb is the water in you cell. Once you watch this video several times and you fully understand it you will see how and what you can do to make the bulb lite or in our case the water to make gas. This is the same setup as the 8xA with a fixed frequency. Also notice you can move the inductor in and out to change the frequency. That is the same thing as gaping the core as Max talks about. But keep in mind that you can only gap a core so much, it is not like a rod core that you can slide in and out. http://www.youtube.com/watch?feature=player_embedded&v=QwUgYBzdcrM

if you look at meyers patents and drawings. as well as the demo tube set, and other material. you will see that he turned off cell sets, and adjusted the tube legths.........this adjusts the capacitance of the cell. removing or adding wire turns will change the inductance of the inductor. and so will sliding the core in or out, as well as different permabilaties. too much gap and you change a lot of things. flux leakage can come from a wide gap. a gap normally is an amount of flux leakage. open ended inductors have much flux loss. E cores mated to an E or I will have less loss, and a teroid will have the least loss.

One thing I found out about gaping a core If anyone takes this route. Is if you use a E core only gap the center leg that your bobbin is on using sand paper, lay the sand paper on a flat surface that will allow you to only sand the center leg and slide the core along the sand paper and gauge it after each time you slide it across the sand paper, just the center leg of the core. If you decide to use this method start out using a piece of 40 gauge wire as a gauge for the gap. I would not advise anyone to go over a 30 gauge wire gap as Max pointed out there will be to much flux leakage.