Quote from: Rawbush on July 25, 2011, 10:10:05 AM
Some thoughts after a day of tinkering with my test rig.  Series bucking can make power, the further the top coil was away from the rotor the higher the volts. I was unable to lower the bottom coil much as with both coils having some distance the drive coils were now not as effective. But what I really think is odd, is that in bucking configuration when load is applied rpm loose is minimal and even in dead short the rotor slows no more then if it seen a few leds.  Now short a series adding coil and the rotor wants to come to a halt. This could be because of the larger air gap of the bucking coil?  Then I remembered, Romeros was tuned to a load, if you pulled to much it would stop... makes me think the coils were in adding configuration? Well I have to head to work for the day, happy building and hope to see some good post in 9 hours.
Peace
rawbush

In bucking configuration, there is less Lenz effect due to the an effect observed by Naudin.
Romero's motor was self-running, so if he changed the load the system did not exhibit enough energy gain to keep it self-running due to a "detuning" effect.

Quote from: mariuscivic on July 25, 2011, 11:45:41 AM
Here it is guys. Tell me what you think

http://www.youtube.com/watch?v=vHOJpW85pBM

Excellent. Is the effect lost if you change the distance of the generator coil? Also can you measure output current?
Let us know what happens after you hooked up more of the generator coils.

The lesser input current is probably just because the rotor is running faster, less mechanical resistance.

Since there is a controversy about Romero`s coil interconnection, i have analysed his videos and his close-up shots and am pretty convinced that he has it set-up indeed in bucking configuration.
The ends of his coils are connected (via the orange cable) and they are wound CW/CCW. The black wire connects the starts to the FWBR.
Here an image:

Quote from: slapper on July 25, 2011, 12:21:28 AM
this coil configuration has occupied my mind for a while.
gonna start coiling a pair (this stuff takes me a while) of these
but i'm afraid the ferrite i have doesn't have the polar domain alignments that may be more desirable.
but maybe this is where the back bias magnets come into play where this presets the domain walls in a more elongated way.

the picture is meant to replace the thousand words but i'm looking at more wraps on the outer core windings.

what i will be looking for is the polarity flipping - similar to bi-metal strips creating a snap action effect.
in this case its 2 types of magnetic materials to create a magnetic snap action.

take care.

nap

Hi Nap,

Is the inner coil's winding sense just the opposite to that of the outer coil? This way the inner coil magnetic poles can directly join to the outer coil poles, right?  Is it done on purpose?

Your coil setup reminds me another setup but it embeds a permanent magnet instead of the inner coil and the outer coil make the flux appear as added together at the ends of the sleeve core, see here:
http://www.overunity.com/index.php?topic=4624.msg96814#msg96814

Thanks, Gyula

Quote from: xenomorphlabs on July 25, 2011, 12:11:16 PM
The ends of his coils are connected (via the orange cable) and they are wound CW/CCW.

Just to clarify:  I believe the top and bottom coils are physically wound the same direction.  And then when one it turned over into a "bucking" configuration it would appear to be wound the opposite direction.  At least that is how I have mine now.

If this is not correct, I will have a lot of rebuilding to do.  But I think this is the only way to have bucking, current cancelling coil pairs.