Electrical igniter for gas engines A keystone to understanding by Magluvin

[woopy]

Hi Mag

Yes good idea to make a back trip to the source.

It calms everything down and we can reconcentrate on the important things.

Besides replaying with your first sim circuit and playing at very low speed to observe the scope of cap and inductor, i was attracted by this link which can be of interest here

http://www.overunity.com/index.php?action=downloads;sa=downfile&id=464

and some pix relative
YUP this inductors are really something fascinating

Lot of fun

And good luck at all

Laurent

[Magluvin]

Doing some intial testing with an amplifier as input to the multi core devices.

This is all in search of a better inductor.

Here is a vid on the 3 core shown earlier.

I used an 8ohm resistor in series with the primary for initial testing.

http://www.youtube.com/watch?v=EViIfsK5xjs

Mags

[Magluvin]

Ugg   the yt vid is still processing   It never used to take this long.

Mags

[Magluvin]

The vid is not done processing yet. 

I did some other measurements that will make sense when the vid is seen

These are measure of voltage across each device,
and are just peak voltages during the sweep.

Amp out    2.96vac
Resistor    15.06vac
Primary     2.066vac
Bulb         24.98        the bulb is 14v

What doesnt make sense is the amps output is 2.96v but we have 15.06v across the resistor.   

Measured it twice.

More this week

Mags

[Magluvin]

Ok. Here are 3 pics of my new multicore that I just finished at lunch.
Im tired of winding toroids. lol   And these are small. They come in a pack of 5 smaller ones and 5 larger ones(prewired as inductors from Radio shack) These are the larger ones. .6 in. OD  .3 in. ID.   

But this is what I have come up with from testing. My previous 3 core had shown some truths to what the author implies.  The more cores with primaries, the more voltage on the secondary. ;]  So I am at 5 cores/primaries at 75 turns(6 ft) each of 30AWG Radio shack. And the secondary is 2 wires(6ft each) wound bifi for testing alternates, series, parallel, single, and both with individual capture circuits.

Each primary is .7ohm and in series is 3.5ohm which I will try tonight first with the 8ohm non inductive resistor in series and then direct to the amplifier.

In my tests with the 3 core, the 3 primaries in series saw almost 2v but the secondary(reduced to 14 turns like the primaries) was 19v. ;]

It will be interesting.   

Tonight I just have to strip and connect the ends to the terminal strip and test.

Mags