Power ratio over one

[handyguy1]

Hay Gary:
I am just the opposite. I can see something mechanical and understand the operation. Mechanics is basically understanding leverage. I feel about circuits, how you feel about mechanics! That is what makes this a great site. The diversity of everyone here!

David

[LarryC]

Hi David,
where is exactly the magnet under the wooden #18 bar ?
Could you shoot a few macro shot pics, maybe just 1 inch away from it,
so we can exactly see from underneath, where the magnet is located and how
the electromagnets look alike and how they push the magnet away and lifting the
teeter-totter #18 wooden bar?
Many thanks.

Hi Stefan,

I have a lot of respect for your opinions after seeing many of your post, but I just don't understand what magnets that you are seeing under the teeter board. I only see the switches, please clue me in.

Thanks,
LarryC

[hartiberlin]

Hi Larry and David,
I just wondered why the axis with the 3 big magnets turned,
when David pushed the teeter-totter board #18 up and down by his hand only ?
So it seems there are only magnets inside these electromagnet units.

David can you specify these electromagnet units ?
Where are they from and what company does produce them ?
Maybe if you have a spare one,
open one up and show us in a video what parts
they contain.

What is the electrical DC ohmical resistance of their coil ?
What size does the coil wire have in them ?
What kind of micro switch is in them ?

I guess the electromagnet coil DC resistance is
under 1 Ohm and it draws a lot of current in this pulse
normally,but as it is activated only for a short moment and
the inductance of these coils is pretty high also with all
the long connection cables to it, you can also see on the datarecorder,
that the current is in the peak aplitudes still under 1 amperes and only for
a few milliseconds.
So averaging it out over the whole cycle is lower than 200 milliAmps,
but I hope the shunt is not too low with its 0.05 Ohm as the datarecorder
shows the input amps with much noise so the voltage at the shunt is too
low for the datarecorder input voltage range and thus it could be
already in the high error range...
So a better matching of the shunt voltage and input voltage range of the
datarecorder is needed or a better preamp for the datarecorder
to measure voltages in the millivolt range without noise.

Anyway, if David would try to use a 120 Volts to 12 Volts transformer
and would power this by his green big coil, so he would transform
his high output voltage back to lower voltage and high amperes,
he could with a graetz brige rectifier and a big cap behind
it already maybe selfrun this unit, if the cap can hold up enough
energy to power the 2 driver electromagnets.
This would be the ultimate test to see, if a selfrunner could be done
this way and if the input current into the electromagnets is really this low,
so that a transformer output circuit could supply it and selfrun the whole unit.

Regards, Stefan.

[wattsup]

@AHHHHHHH

Here is a diagram of how I see it work.  Please correct me if needed.

Here is a spec on the micro contact.
Rated 6A and 250 VAC (1500 WATTEROUNIES)
Electrical life at rated load - Minimum 6,000 iterations.
These contacts will last and last and last.
http://www.cherrycorp.com/english/switches/miniature/e51.htm

The four micro contacts each have a LONG THIN METAL LEVER (Mechanical). No magnet needed.

So one side of the battery goes to two micro contacts, the other side of the battery goes to the other two micro contacts. Just flip the wires so each side is the reverse. All contacts are NO. That is to say when the teeter is up, the two micro contacts are NO hence open.

The micro contacts levers on the down side of the teeter are pushed downwards, so if they are also wired NO, then these two are closed in one polarity. When this side rises, it will open, the other side will close in the other polarity.

@HG, when you get a device name, let us know and I'll change it on the diagram.

[handyguy1]

Hay Stefan:
The driver coil (#15) is the electromagnet. All it is, is a single strand of 15 gauge wire, wrapped in a coil. If you have a coil of wire hanging around, put a permanent magnet inside it, touch a battery to the two coil ends, and the magnet will move. Wattsup schematic is exactly right. There are no magnets or electromagnet in the switch assembly! In the video you reference, I moved the teeterboard with my fingers to show the operation of the teeterboard in relation to the movement of the engaging lever (#4).
Wattsup's schematic shows all there is. Thanks Wattsup. It looks like you might be the first to replicate this device. If that?s so, I?ll let you give the device a name!
David

A transformer does not work well for the input. To much humming, and the secondary unit doesn't work right.