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PC Fan Generator

Started by geotron, March 21, 2010, 12:26:43 AM

Previous topic - Next topic

0 Members and 2 Guests are viewing this topic.

geotron

Quote
Another interesting component might be to purchase an
audio transformer from RadioShack for @$2.99 USD. The one
with 8ohm primary and 1Kohm secondary Center-Tapped. In the
worst case you can use the 8ohm primary connected (use DVM
resist.) to your coil and put the led leads across the center tap
to either other transformer secondary leads.

...very insightful (!) If my local radioshack has them,
I will get one and hook it to my finished coil. I don't
understand what you mean by DVM resist -

------------

The legs of my LEDs are in fact magnetic, so no problem there.

Model EI-19 is the one I've got my sights on.
The datasheet - http://www.mouser.com/catalog/specsheets/XC-600128.pdf

At the radioshack item page*, all that it gives is the
model number, so looking at the Mouser.com datasheet I see
that on the chart at the bottom of the page it lists six
different impedances.

Radioshack - Audio Transformer EI-19

Are these all contained within the same EI-19 transformer by
use of different lead wires, or is each a separate item to
be purchased individually?

I'm not certain that I would be able to figure out how to
wire it up even with the part in hand - the six wires seem
like too many, and the Red-Yellow-Red-Blue-Yellow-Blue for
the one shown as 1Kohm-8ohm doesn't help me much.

I'll be reading up a bit more on transformers soon... as well
as electronics in general - interesting stuff!

mscoffman

Quote from: geotron on March 31, 2010, 08:32:40 PM
...very insightful (!) If my local radioshack has them,
I will get one and hook it to my finished coil. I don't
understand what you mean by DVM resist -

------------

The legs of my LEDs are in fact magnetic, so no problem there.

Model EI-19 is the one I've got my sights on.
The datasheet - http://www.mouser.com/catalog/specsheets/XC-600128.pdf

At the radioshack item page*, all that it gives is the
model number, so looking at the Mouser.com datasheet I see
that on the chart at the bottom of the page it lists six
different impedances.

Radioshack - Audio Transformer EI-19

Are these all contained within the same EI-19 transformer by
use of different lead wires, or is each a separate item to
be purchased individually?

I'm not certain that I would be able to figure out how to
wire it up even with the part in hand - the six wires seem
like too many, and the Red-Yellow-Red-Blue-Yellow-Blue for
the one shown as 1Kohm-8ohm doesn't help me much.

I'll be reading up a bit more on transformers soon... as well
as electronics in general - interesting stuff!

@geotron

The Mouser and RadioShack transformers may be built on the same
core but they are *not* the same transformer.

The Radio Shack does not have a CenterTapped Low Ohms 8ohms
winding. Only 8ohms total. Peoples comments say it is 1Kohms:8ohms
there is not an official specification listed. I believe what those people's
comment say. Can't tell what eact voltage step-up ratio is.

The most optimum overall Mouser is: 42KM001-RC Red-Yellow-Red,
Blue-Yellow-Blue. Both coils have CenterTaps unlike the RS unit.
The windings coming out on the same side of the transformer
are paired. I like the Mouser better but RadioShack
may be instantly available. The turns ratio is 9:1 not 50:1
but is still ok. The Mouser gives lots of different combinations
of leads so you can see which one works best.

DVM resistance mode. -> To measure the DC resistance of the
windings. The windings are not using the same gauge wire, Therefore
the resistance ratio and turns ratio are not 1:1.
Turns ratio and voltage step-up-down ratio is always 1:1

Just connect the coil in a circuit across the low ohms side and
connect the led across the high ohms side. You can use a transformer
either direction> The DVM will show you which leads are connected
to each other.

:S:MarkSCoffman

geotron

Xicon apparently makes one that is
similar - I'm uncertain whether or not
it is better than the 42km001-rc, but
the price is good, and I've been in
the planning stages of building a Tesla
Switch anyway, so I may just order a
small pile of them for good measure.


42TL013-RC at Mouser


If I can set up enough of the wound coils
around the magnet-cog fan, in addition to
experimenting with overunity I could also
use it for an interesting conditioned power
supply with the attached potentiometer for
perhaps a miniature Gray's Tube... ?

One way or another there's certainly got to
be a way to get this thing running on its
own... I've seen plenty of evidence that
overunity exists in videos here and there,
especially by Bedini, so this is something
that I'll rightly be sticking with.

Another technology that may be possible to
incorporate is from Searl. It bears somewhat
close resemblance to the spinning form of
a Searl Effect Generator, although lacking
the various layered materials.

If there was some way to copper-coat the
magnets and create layers on them in some fashion
similar to what Searl has done... lots of guessing
here, but fanciful thought can be the best kind.
I'm clearly out of my element theorizing on this,
but no harm in sharing I suppose.

geotron

-( My Newest Video )- showing the various
effects of reducing the voltage with a RadioShack
potentiometer. The first one I purchased was either
a dud, or my use of it was incorrect and it broke,
or it hadn't been 100% in some way.

The new one is a 15 turn Cermet 271-342

At first the change in speed is incremental, as I'm
using an almost normal size screwdriver to turn the
knob without having it slip out.

Towards the finish, I pause and spin the larger one
to help it along - it had come to a stop during the
introductory lowering of voltage.

geotron

The 1N60 diodes have finally arrived, so I'll be wiring
them onto my coils to collect front and back EMF. I've got
a 470uF 35V capacitor from Radio Shack, so this will
eventually become part of it as well... hopefully with
many siblings.

While on the subject of capacitors, I'm horrendously
confused by their designation as it relates to how many
amps they hold. 35V makes sense, but how the 470uF rating
translates into Amps X Volts = Watts, I've got no idea.