Muller Dynamo

[neptune]

@Powercat . I dont think we know exactly how many magnets are on the underside . Watch the video with the device suspended in the air , thats your best bet .And yes , remember each coil pair needs individual tuning . That may involve cardboard shims bbetween magnet and coil .
        Just a cryptic thought . Perhaps there is no new phenomenon or priciple behind all this .New discoveries are usually made up of known devices and processes assembled in a never-before tried combination .A unique arrangement .
       

[woopy]

hi all

2 cents for the interested replicators

i got  those small  plastic reel from sewing machine, which has exactly 20 mm outer diameter and the 6 mm hole for a ferrite rod.

i found also that some ferrite inductors has exactly a 6 mm  diameter core, the one on the pix is 25 mm length.

i wound one of those small reel with 0.3 mm plain copper wire and could get 450 turns

the  DC resistance is  6.2 ohms and the naked ( without core )  is 2 mH  with the core centered 6.8 mH   and the weight is about 15 grams

hope this helps

Good luck at all

Laurent

[Dbowling]

neptune,
Thanks for the info. I have one small problem. It doesn't matter what RomerUK INTENDED to build, because what he actually BUILT is what worked. That's kinda like saying I "Intended" to build a five wheeled car, but I only had four wheels so that's what I ended up with, but YOU should build the five wheeled car I "intended" to build.

Right now we need to duplicate the build as exactly as possible. THEN we play around with adding magnets to all the coils and see if that improves it any.  That is unless you know something we don't know. If we went ahead and built with magnets on all the coils and it doesn't work, is that because it was a fake or because we didn't duplicate the build? That is the situation we find ourselves in.

[powercat]

@Powercat . I dont think we know exactly how many magnets are on the underside . Watch the video with the device suspended in the air , thats your best bet .And yes , remember each coil pair needs individual tuning . That may involve cardboard shims bbetween magnet and coil .
        Just a cryptic thought . Perhaps there is no new phenomenon or priciple behind all this .New discoveries are usually made up of known devices and processes assembled in a never-before tried combination .A unique arrangement .
       

Now that last bit sounds very logical and a lot of technologies came into being that way 
I will see if I can get a good screenshot of the underside.

[chrisC]

hi all

2 cents for the interested replicators

i got  those small  plastic reel from sewing machine, which has exactly 20 mm outer diameter and the 6 mm hole for a ferrite rod.

i found also that some ferrite inductors has exactly a 6 mm  diameter core, the one on the pix is 25 mm length.

i wound one of those small reel with 0.3 mm plain copper wire and could get 450 turns

the  DC resistance is  6.2 ohms and the naked ( without core )  is 2 mH  with the core centered 6.8 mH   and the weight is about 15 grams

hope this helps

Good luck at all

Laurent

Nice to know the sewing machine plastic reel yield about the right sizes. Thanks Laurent.

btw, anyone knows what bearing contraption Romero used for his rotor/spindle and where to find one in the U.S? Thanks.

cheers
chrisC