Quote from: xenomorphlabs on July 29, 2011, 08:24:56 PM
Have you tuned the first coil pair with bias magnets like Romero suggested before adding more coil pairs?

First pair was tuned w/bias magnets first to maximum Pout vs. RPM drop as best I could.

Second pair was also tuned the same way and eventually achieved very similar Pout.

Once combined in parallel into the Dump Cap after the FWBRs the Pout to Pin ratio did not increase much at all.  I would have predicted close to a doubling in the Pout to Pin ratio since Pin was measured to have not increased by very much at all.

M.

Data for each coil pair tuned with backing mags and finally placed in parallel to the same load incandescent lamp (sorry Milehigh).

Please note that data was taken on several different days under different temperature conditions.  I've been cooling the garage by connecting it to the home AC with forced air, but we are still having miserable temps out here, so I assume temp variations are affecting readings slightly.

Ah now i understand your point.
I believe actually that already a single coil pair in Romero's device has already exhibited a COP of very close to 1 and that then adds up with the other coils.
That's why he stressed several times to work on one pair only until you got "it".
So with two pairs you should already be at COP>1.
I mean the guy pulled like 30 Watts out of 7 generator coil pairs where a couple of them didn't even have biasing magnets as to conclude they were not all tuned even.
After building it he reported initial COPs of 1.8, then he spend a lot of effort on tuning and then finally came up with the self-runner.

So it seems to indicate that much more energy must be caught somehow by the system to get there.
Remember Romero suddenly abandoned his coil-shorting set-up with a single generator coil and concentrated on building the bigger Muller.
He found something already in the smaller set-up.
I am not so sure that we have totally understood yet, what that really was.
Just my 2 cents.

Just to follow up on the "RF noise" idea a bit more...  The little 12 band radio appears to tune in best to the noise thrown by this device on the AM band at ~1300kHz.  This was tested by moving the radio further away from the system (noise source) while tuning to keep the radio's little "tuned" indicator LED lit.  So I believe this is the strongest signal.

Is this significant in any way?  If this coil callapse induced noise is interfering with the power transfer of other coils in the system, how should we shield/counter this?

Thanks in advance (need me some RF guys!),

M.

Quote from: escalator on July 29, 2011, 06:35:10 AM
@plengo

Current and voltage have amplitude and phase. You have measured current amplitude so if you dont get 160mA with 2 coils in place maybe you have a current phase shift between the 2 coils. You can check this with one 2-channel scope measuring a low value resistor in series between each coil and load  to get voltage from current reading. You must have 2 coincident waveforms in time, if not you must move one of the coils till you get this , the same applies for output voltage.

you're correct. I forgot to mention though, I have that voltage on the buffer cap with the load. So the voltage is a stable voltage and a stable current after the cap. So it is what I said indeed. No measurement error from my part.

Fausto.