Andrew,

My coil is about the same distance from the magnets as yours. I also get an rpm
increase the closer the coil is to the magnets. The main thing I don't like
about using the battery on the primary is it tends to fall out of the sweet spot
as the primary voltage drops.

Preston,

Thanks for your data it's helpful to compare. My understanding is that you want
the highest rpm for the lowest current draw from the primary.

To all,

Please correct me if I'm wrong or add anything I may be missing. My
understanding is the ssg is charging the primary battery by way of the voltage
spikes produced by the pulsing of the coil along with a small current. So
charging will happen regardless of if we've got it in the sweet spot or not. We
tune our ssg only for maximum rpm for minimum current draw to get the most
voltage spikes for the lowest cost in hopes of being able to achieve over unity.
The higher the rpm the greater the magnitude of the voltage spikes. By tuning
for highest rpm and lowest current draw it becomes possible to achieve over
unity with the ssg once the batteries have become conditioned and we work within
the C20 rates of the batteries and stay within the more efficient area of the
charging curve.



--- In Bedini_Monopole3@yahoogroups.com, "preston_stroud" <pstroud@...> wrote:
>
>
>
> Hi Jamez354
>
> You had asked what current and RPM that others are getting. After
> replacing my 2N2055 with an MJL21194, I ran a series of tests with my
> new tachometer and various resistors (without the POT). I measured the
> power battery input current (on negative terminal), the charging mA on
> the charge battery's positive terminal and the RPM. Note that I have a
> 11 1/2" diameter rotor with 10 magnets on it. My rotor was cut out of
> 2" x 12" treated wood and is very very heavy. Its like a heavy fly
> wheel and is probably keeping the wheel from turning faster. I'm
> looking at cutting some large holes in it to make it lighter. In the
> mean time, my testing is documented below.
>
> Here were the results I measured (Note the ohms is the resisitor I
> swapped for each test)
>
> * 100 ohm = Pwr 130 mA, Chg 21 mA, RPM 97
> * 150 ohm = Pwr 120 mA, Chg 19mA, RPM 99
> * 180 ohm = Pwr 120 mA, Chg 19 mA, RPM 98
> * 330 ohm = Pwr 100 mA, Chg 16 mA, RPM 102
> * 390 ohm = Pwr 90 mA, Chg 15 mA, RPM 103
> * 470 ohm = Pwr 80 mA, Chg 14 mA, RPM 104
> * 680 ohm = Pwr 90 mA, Chg 21 mA, RPM 92 ***** Sweet Spot ?
> * 1 K ohm = Pwr 70 mA, Chg 14 mA, RPM 92
> * 2.2 K ohm = stops running
>
> Based on the test results above, I determined that the 680 ohm resistor
> must be the sweet spot because it has a lower power batter current draw
> with the highest charging batter current (although it is not the fastest
> speed).
>
> Preston Stroud
>
>
>
> [Non-text portions of this message have been removed]
>