Muller Dynamo

[nul-points]

Ron
[...]
i'd also be more than happy to have such an elegant build as you
[...]
all the best
np
[...]

oops - i hope it's clear that i'm referring to your replication of Romero's generator - and not that i'm comparing our manly physiques!!!! 

[i_ron]

oops - i hope it's clear that i'm referring to your replication of Romero's generator - and not that i'm comparing our manly physiques!!!! 

LOL, now you tell me... I was just going to ask you if you were doing anything later on?

Ron

[chrisC]

NP,

No I haven't tried Litz wire ...yet I will put that on the to do list,

Thanks

Ron

For those of you who are looking at the Nebraska surplus place for Litz wire, let me tell you that's the perfect Litz wire source! Just look at my photo. I wound a 200 winds on a 28AWG wire and it filled my whole bobbin. Then I tried the Litz wire and I did 500 turns and it took just 2/3 of the same bobbin space. More windings with less space! Way to go.

cheers
chrisC

[synchro1]

ChrisC,

"I wound a 200 winds on a 28AWG wire and it filled my whole bobbin. Then I tried the Litz wire and I did 500 turns and it took just 2/3 of the same bobbin space. More windings with less space! Way to go".

Your Litz guage looks smaller then the solid wire. It should be a little thicker if it's the same gauge. What size is it? In order to compare the Litz to the 28 guage you have to measure the Ohmic resistance per foot in each. I bet from looking at the Litz that you'll read less Ohms per foot, and that explains the smaller wrap. The Ohms have to be equal per foot to match the guage.

[toranarod]

Great work Rod. I posted on the other thread my findings about the bearings from hard drive or VCR. They will not work with those magnets and the necessary distance from the cores. While I was playing with my rotor and trying to position it to the correct place I noticed the tremendous forces involved and only a real shaft with 2 points of stable support will handle, specially when this start spinning at 2000+ rpm.

In the beginning it may looks like it is working but eventually the rotor will wobble and break everything. Not worthy. Go for the a real shaft and strong bearings.

Fausto.

Yes.. You are absolutely correct. I was just trying to save a bit of time and money on that part.
So now its cost me more time and I was just getting to the interesting part.

lots of force going in the direction the bearing not made for.