Muller Dynamo

[scratchrobot]

@Scratchrobot . Many thanks for sharing those details .Please confirm that the fan motor drives the rig and there are no drive coils .The bit about putting the second coil in the right spot is interesting . I assume that you are leaving the first coil in a fixed position , and moving the second coil along a circular path centred on the centre of the rotor ,Yes ,? If this is true , can you give rough estimate how far you need to move the second coil from its alignment with the first coil . to find the sweet spot please ?

Yes the fanmotor drives the rig and the bottom coil is in a fixed position, the coils are head/head or tail/tail? I find it also very interesting that there is a sweetspot and it is not hard to find when you can move the coil. I think it is important like the gap between coil and magnets and many other things. I now understand why we should do such simple experiments and not try to replicate the whole device and expect it to selfrun 

[Drak]

Well, I'm going to rebuild using only two driver coils with an open rotor so I can try different pickup coils since the secret seems to be in the pickup coils. My coils now are bifolar and JBWelded in place. (Doh!)

http://www.youtube.com/watch?v=p3khIOTjbUQ

[poynt99]

Well, I'm going to rebuild using only two driver coils with an open rotor so I can try different pickup coils since the secret seems to be in the pickup coils. My coils now are bifolar and JBWelded in place. (Doh!)

http://www.youtube.com/watch?v=p3khIOTjbUQ

Very nice build and equipment Drak!

.99

[Artist_Guy]

My take then, is what romero did in similar fashion,  but not using the AC caps in series, is knock the coils back into the 90 degree resonate condition with the AIRGAP RATIO between upper and lower coils/cores and passing rotor magnet....for example, have lower airgap greater than upper and its all out of phase to one another how the coils energize...so they will induce at different "rates"... have airgap the same and its the same phasing and induction is the same.

Was reading on the other thread where Romero mentioned, belatedly, that his magnets in the rotor were actually 15 mm thick, not the 10mm and that is why they protruded beyond the 12 mm rotor slightly above and below. Now he says he used a 10mm and a 5mm stacked, 5mm on top.

The 10's were said to be N38's, so what if the 5's were N42's...Yet the rotor appears to be spaced equally. Top of stack slightly stronger...?

And if they were still the same, would you not get a different flux situation above where the stacked one was?

AG

[k4zep]

Hi All,

Further testing in the  "Parallel" mode that I show in my schematic (10uF directly across the bucking coil pair) and wiring the 10uF cap in series (looks like but it isn't) through the diode bridge and then back through a current sensing resistor, I have to say, the 10 uF cap across the coil directly and then using the "Bridge" as a peak and hold/rectifier circuit is superior in every way.  The diode bridge, diode drops really mucks with the resonance of the coil/cap combo.  At different loadings, it is possible that the "series" way is superior but I am not convinced as of right now. 

I also must say in this case in my parallel circuit, the magnet bias gives me almost a 30% increase in output!!! with 10 ma load!
Why, don't know yet, but lots of ideas.

As far as the "damn red wire" hoax theory, I really don't care, I'm having more fun than I have had in months......whether it ever self runs,
I really don't give a hoot.  That's the last I'll say on the subject.

Schematic with Series circuit added.

Respectfully
Ben K4ZEP