STEORN DEMO LIVE & STREAM in Dublin, December 15th, 10 AM

[Larskro]

Hi
Where can I buy Metglas  2714A. ??

Larskro

[Larskro]

Hi
Where can I buy Metglas  2714A. ??
Thanks. Larskro.

My recommendations to anyone who has the resources to make a self runner is to -->

1. Get magnetic ball bearings.

2. Make sure your toroid has a many turns as possible, but be very careful about parallel capacitance. This means you should know how to wind a core. Trust me, you just can start winding away.

3. Try to make your setup as balanced as possible because IMO the Orbo seems to like high rpm. Higher the rpm increases the COP measurements if you can keep the friction losses down. If memory holds true in my measurements, higher rpm does not increase the joule heating losses, but does increase the output (e.g., in friction heating in my case).

4. Reduce air drag as much as possible.

5. Keep as much metal away from the toroid & magnets to prevent eddy currents.

6?. I have not confirmed this yet, but it seems that the Orbo likes strong magnetic attraction. If true, then you'll want to use a North-South dual NdFeB set. This will greatly increase the magnetic pull prior to TDC. You just need to make sure your current can overcome it. Although, I'm certain there's an optimum distance between magnets and core. My NdFeB magnets are small.


Anyhow, I've spent enough time on the "orbo replication," and given my recent well over COP 1 measurements I'm convinced the Orbo is legit and over COP 1. So I'll be going back to my old magnetic designs, which IMO use the exact effect that Steorn is using, a magnetic switch, even though Sean says otherwise. I think Sean is great, but if it's true that Orbo is based on a magnetic switch, then IMO that pretty much stops him from preventing other companies from marketing similar technology. The magnetic switch concept has been around for before Steorn.

Enjoy! The more experienced builders here should have great results with the Metglas cores, to say the least!

[Jimboot]

Hi Jimboot,

Using the UGN3503, put a 10K from the mosfet gate to the positive of your 12V supply and another 10K from the mosfet gate to the ground. Then connect the output from the hall sensor directly to the mosfet gate. Power the hall sensor from a seperate 6V supply but make sure the ground of this supply is connected to the ground of the mosfet supply. This should work as it has worked for me using an IRF1405 mosfet.

Don't forget that hall sensors are magnetic polarity sensitive to N or S in reference to their front face or back face.

Regards,

Ossie

Wow thanks Ossie. My metglas just arrived! But it isn't the squareloop unfortunately. That won't stop me playing with it tonight though!

[woopy]

[Hello all

What a pleasure to follow this thread since the beginning

thanks to all for the sharing of such a good work and very special thanks to Ossie .

yes the quest for overunity is very important but simple and "practical" easy to do and cheap proto is ,IMO, one of the good way to succes in this quest.

So my testings here under , sorry only pictures, but i promise, i will soon learn how to use video. hmmmmm!

So after having tested the crude replication of orbo with normal ferrite which works very well,    Ossie proposed the flat toroid idea, which i replicated at once.

Very good results and sooooooo   easy to wound a real pleasure for amateur as i am.

-toroid core simple clamps of unknown material

- wounded with 0.4 mm copper very crude making


- resistance of the coil= 2 ohm      shortcut is 1.5   A protection diode  through the coil is very recommnanded to prevent kick back sparks  to destroy the reed switch

- all magnet are neodym

- this setup works with 4.5 volts battery  the current is about 200 mA  direct through a reed switch  (no electronic)

- works very well and by braking the main shaft the current seems to stay constant about 200 to 220 ma..... back EFM and Mister Lenz in Holliday ?

- kick back recuprration through a high voltage cap (MOT) and i can light a neon bulb each 5 seconds.

-Very interesting

- i will receive some material to go further  and will keep you informed

- and bravo to Ossie for its last video very helpfull     Hi Hi only one 1 wire core   hehe thats how i see the future

best for you all

Laurent

[Jimboot]

I recommended the UGN3130, not the UGN3503. My circuit works fine for me.

Yeah I got that but all that seems avail here in Aust is the 3503. 'sok Ossie has come to my rescue!