(from romeroUK's Muller Dynamo replication notes, as posted on overunity.com)
MAGNETS
5 mags on top (not on drive coils)
Romero post #20 shows static mags are opposed to rotor mags (& therefore opposed to coil drive also)
The 'helper magnet' is separated from the coil by the thickness of the acrylic (1cm).On the acrylic is glued a 1mm/20mm washer then the magnet on top.
I had an ideea and went back to the generator.
I was adding small ferrite magnets 20mm diam/0.5mm thick on top of the existing coils and the input now is reduced to 0.78amp and the speed is increased a bit.
COILS
9 coil pairs
2 drive pairs
7 gen pairs
The 2 driver coils are not next to each other, one coil is on one side and the other exactly on the other side.
coil 1 and 6 are the driving coils from the left to the right.
All other coils are connected to bridge rectifiers, each set of coils goes to a rectifier then all are connected in parallel
Each coil has 300 turns of 0.8mm multistrand, one set of coils is 600 turns in total.
I had measured the inductance and it is 1.203mH plus and minus, not all coils are exact value but with the magnets on the rotor being close to them that might not be exact.
The driving coils are using wire recovered from the deflection coil in monitors, many wires there, never counted but still totals about 0.8 - 0.9mm
Some tests from other projects before showed me that using multistrand wire I get better results.
Another reason is the type of wire I had when I started the project adn also much easier to build the coils when the wire is more flexible.
Multistrand made of 7 wires totaling 0.8mm or 0.82mm, not 100% sure.
Some time ago in a Bedini project I have built 2 identical coils but one with normal wire and another with stranded wire.I was using this coils to collect the power from the rotor powered with a Bedini standard circuit.Same core same wire diameter, all the same...
The results at that time(no load): normal wire output was 9.2 volts
stranded wire output was 12.3
since then I have always used stranded for most of my coils
I had one kg reel
I had a big reel but not used all, I am not sure how much I used.
The coils are 1cm usable, the inside between the ends, in total 1.2cm and diameter 2.2cm
the winding space is only 1cm. the core left goes thru a hole into the top and bottom supports but not touching the magnets.
the core ferrite 1.5cm/6mm diameter.
I have tried without cores but less performance, higher speed but low output.
After some tests today and changed one pair of coils, same type of wire but 1.5cm diameter ferrite core, 1.5cm long.
Still 1cm winding space on the coil on 3.5cm diameter coil.I have doubled the number of turns to 600 for each coil.
This was done just for one pair of coils, recovery not driver coils.
The output is increased but for more I will need to change them all to balance the system but I wont do that, is to much unnecessary work, I wanted to check and apply to the new system.
Don't even think of using metal or laminations for the cores.
The core is ferrite 6mm diameter 15mm long.
People should pay attention for the core material, that is one of the most important keys in this setup togheter with the spacing arangement.
[neptune:
@Romerouk . please when you get a minute , can you give your opinion on the 10mm ferrite rods from old radio .I know several people are thinking of using these]
the core is not in contact with the stator magnet but goes half way thro' support
I am driving in attraction mode. I have started the project in repulsion then tried attraction. I get much better torque in attraction.
The 2 driver coils are using multistrand from the monitor deflection coils, all others are from the folowing link:http://wires.co.uk/acatalog/st_wire.html
7 X 0.125MM SOLDERABLE STRAND EN.Cu 500g
Ref: ST01250007-500
PHYSICAL
The coils [fixings?] are made of acrylic and all parts are acrylic - I used dichloromethane to glue them all.
Ultra important is to have the coils spaced equally. Failing in this arangement will cause system not to work properly.
