Muller Dynamo

[lanenal]

Many thanks to e2matrix and stefan, now I have obtained the three videos and uploaded them to a video website in China -- it might be helpful for those who can't watch from youtube. Here are the links:

Muller type generator with extra magnets.
http://www.tudou.com/programs/view/CgfWB31K2CY/

Muller Generator - self running - Test1
http://www.tudou.com/programs/view/yipBzINFQsk/

Muller Generator Suspended
http://www.tudou.com/programs/view/spuAdspwDBg/

It may have a few seconds of Ads in the beginning by the website policy.

lanenal

[khabe]

I must reply to you, Bruce.
But First, the replications I have seen here, names not needed, are so good that words cannot express my appreciation.  Fantastic work. 
Bruce, I have a question, that "May" be important, as it directly relates to this.  Your pic shows the stator coils, but this is in reference to the "Generation" coils, not the "Drive" coils.  IF there were a magnet on the drive coils, then what I stated applies very well.  I do not see one in the video's, which is why I noted that I could not see the bottom.  Without or with magnets, attraction will always be better, due to flux concentration, but I am sure others with motor design experience could explain that much better.  Of course the "Gen" coils will be in repulsion, as far as the magnets go.   My Question, "Do you think there are magnets on the "Drive" coils?"   If yes, then both are in use, and if no then just attraction.  I am assuming no for now, and ignoring the old method of reversing the coil current flow from the collapse, as that would be too much at this stage.  (The circuitry wasn't in video, either, and this is all still replication, right?)
So, what this all comes down to is, if Romero stated it works better in attraction, this implies he tried repulsion.  This would be possible just by flipping the magnets on the stator drive coils to opposite way for repulsion, or the same way as the "Gen" coils for attraction mode.  I doubt he would have wanted to reverse the magnets polarity for the drive coils to be in repulsion, as the attraction caused during coil off might be a problem.  (Might help to start, too.  I have not gotten that far, but the washers could allow for more than tuning, in this very low probability case.)
I think there are NO magnets on the drive coils, and if there are, then they are in repulsion mode with the coil(s) in attraction mode.  Either way the motor uses attraction force during the coil drive time.  Does this sound reasonable?
(Note: this operation can be accomplished without a rotor, but that is another story.  Working on that until mags come in...)

attraction / repulsion,
When to look the Rom chosen position of  driving coils then when one of rotor magnet will approach to the first drive coil, then from second drive coil the magnet will already back away. It means that one coil need to work as push, second one as pull - first in attraction when second in repulsion mode  - (or conversely) this is feasible with just choice the  right choice coil wire ends (Aa or aA).
And of course upper and lower coils need to be likewisely contrary polarized.
First drive coil upper Aa, lower aA, second drive coil upper aA, lower aA (just simple figuring about wire start and wire end when all coils wound in one direction).
Now when driving pulse comes, then first driving coil works like push, second driving coil works like pull (or just the opposite)
Figuratively there is no classical push-pull cycle for driving, but anyway when first driving coil is in attraction then second driving coil works in repulsion.
My English is really poor, but hopefully my opinions are comprehensible,
cheers,
khabe

[khabe]

Look at these ferrite cores/bobbins - all in one, no needs for sewing machine bobbins, no needs to make the fur fly with wife, no mamas cry 
eBay item 220660230192  (ebay.de),
OK, perhaps not for to replicate Rom´s dynamo but for own design surely,
Already wound with 1mm wire, and only for 1 EUR 
cheers,
khabe

[wings]

Look at these ferrite cores/bobbins - all in one, no needs for sewing machine bobbins, no needs to make the fur fly with wife, no mamas cry 
eBay item 220660230192  (ebay.de),
OK, perhaps not for to replicate Rom´s dynamo but for own design surely,
Already wound with 1mm wire, and only for 1 EUR 
cheers,
khabe

Mundorf M-Coil ARONIT-core coils litz (baked varnished)

http://www.hificollective.co.uk/components/mundorf_aronitcore.html

££££!!!

[khabe]

Coreless Adams,
http://www.youtube.com/watch?v=6Lfhe0F8zE8&feature=player_embedded#at=13
more precisely
http://video.mail.ru/bk/mopoz/_myvideo/36.html
wonder why called as coreless
cheers,
khabe