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

[k4zep]

All,

Need a little help. I have repaired my solid state Orbo and is able to run the unit
at very little input power. My digital ampere meter shows 0,00 and -0,00 alternating.
I do not trust that meter. I hooked up a analog moving Iron ampere meter. It says
zero amps. I do not trust that to be true either.

So, how can I make a accurate measurement of the input current going to the circuit?

Alex.

Alex,

Get a better analog meter in the 0-100 ma range or use a current shunt, scope.  REMEMBER IN this device the impedance of the coil changes radically during magnet passage and current drops accordingly.

Ben K4ZEP

[Groundloop]

Ben,

Thanks. I have no magnets passing, this is my solid state unit.
The magnets are firmly attached to the toroids.

I will try a 0,25 Ohm non inductive resistor on the input and see what I get.

I found that the circuit uses 14mA from the 12,25 Volt battery while still
maintaining an small output.

Thanks,
Alex.

[PaulLowrance]

Ben,

That's amazing you can get it to work at 0.5V.

My motor's almost ready for the 1st test run. If all goes well then maybe a video tomorrow. The core's I'm using have so many turns that in my case the voltage will be high, but if it turns then the current should be low. Maybe it will be in the micro amps. 

[infringer]

Seems to be a fair amount of decent testing going on here I just want to thank all you guys for sharing your work with the rest of us without all the fancy equipment and test rigs most I have is a a soldering iron and a lot of resistors some breadboard maybe a dip socket or 2. That I had for old eprom projects that I never finished to make home brew mp3 players.

I just have to say thank you for sharing all the video and all the progress being made all of you have done a rather excellent job of staying on track weather trying to prove or disprove this should be the topic that will follow us into this bright new year!

I wonder if JP Morgan dropping out of FDIC coverage had anything to do with this device after all he was the original power broker of America... Probably not but hell just figured I'd tack it on as an observation.

[maw2432]

As far as I can see that's a real-time transmission through the serial port. What DSO's do is they store the data in their own memory for later transmission via the GPIB. I don't know, if I were you and I'm serious about these matters I'd invest once and for all to have a good scope. I know, that's easier said than done but that's to be preferred. I wonder if you've seen there are computer cards which are actual oscilloscopes which you may insert into your desktop. I've worked with such long ago but it's a pain, I think (depends, you may like it, I don't know). The best thing is to have state of the art equipment which will also enhance the credibility of your results. It's one thing to present results taken with a Tektronix DSO and quite different with some chinese attempt at a DSO replica. I looked also at the Fluka Naudin uses but they're also expensive. For that money I'd prefer Tektronix many times over.

Thanks again

I know having a higher MHz scope would be better - but would  a 20 to 60 MHz scope be useful for these motors or do you need higher ?

Bill