Here are my findings on freq. coil duty output. 1). freq. is important. It effects the voltage output to cap, but this is important. If your freq is too high you will destroy the effect because as the freq. increases the time for ring down decreases. This is why there is a sweet spot, even though in theory if you increase your freq you can only get so high before your pulse incorporates the spikes you are trying to capture to cap. 2). Duty is important. It helps hold voltage high for a period and there by increases size of gains per pulse, and again this is important.. If you increase you duty too much it too will start to incorporate the ringing of the coil into the pulse and there by destroy the effect again. You must take this into consideration when pulsing. "( you can duty yourself out of gain)" hehehe. 3). Period is also important here. If you are trying to pulse a coil that is not in resonance with the rest of the circuit you will destroy your effect yet again. The time it takes for ring down to cap is very important . If you can build a coil that has a very short period you can increase your voltage by increasing your freq. and even duty, there by gaining voltage over all. IMO This is what Tesla was trying to say when he said harmonics are critical to the working of the circuit. These factors are not a mystery now that I have a handle on the system. My research clearly shows the relationship to all of these factors. The best way to set up your coil is to monitor the trace and watch the spikes as you change the freq. and duty. Knowing your coil resonance help only when first starting out. I have also concluded that there is a sweet spot,e your coil pulse target freq. multiplied by 288 or 144 in order to find the coil freq. appears to have an effect as per our other conversations about harmonics and nature.. The newest guesstaments made by myself and John, would appear to show that we now have the ability to reduce the overall size of our coils and still be able to gain the voltage we need. The cap size also is important. I placed a 1 uf 16 volt cap and saw a 2% gain in charging with my direct short charging circuit. We still need to shrink the size even more to get the charging voltage up to levels we need. At this time the circuit works flawlessly. It has been running now for 4 days without a hitch I have charged about 7 batteries ranging in there discharge states all 12 volt bty's. 3 of them 2 volts 1 at 6 volts 2 at 9 volts and one at 11 volts all from the same source battery . The source Bat was a 12 volt 6 amp . and all of the other batteries were 12 volt 1.3 amp. the fact that the source lost about 30 to 60 MV per charge is a concern but one I believe that we will overcome with the right cap and the use of my new software that we will be writing this week. The best freq. and you can forget about all the rest. For ALL COILS whether pod 2's or acg's 4 kHz at 5% duty you can vary the duty as much as 9% before you start to incorporate the output ring down into the pulse. Now this can change to 2.2 kHz it is the next best thing. but 4 kHz gives the most pulse's with low duty before loosing the effect. The inverse is also true. If you have too low a freq. the cap leakage will get you. And or your circuit will not have enough to power itself over a long period of time. We now have 3 circuit options: 1). The basic charger this unit will only charge and maintain a battery in storage . Like you might find on a Boat or RV. 2). The advanced Charger this unit will charge a source and load battery while driving a load. Though not a large load.. 3). The Solar charger. This unit will increase the efficiency of a Solar cell . And will be able to reduce the size of the Cells themselves to levels that are not a hindrance. All these options give us a very large market with which to sell too. And with the addition of the Quadpacitor we will Change the World...... Kinda neat How many people get to say that and have it be true??? This is a special time for all of us. History will remember us and most likely equate use with the likes of Edison, Devinchi, Franklin, and yes even Tesla... Take good note people the Museums will all want copies . lol. Yours Warren Williams Adiabatic Research Labs Ltd. Vice President of Research