Aaron wrote:
TheDude,
Lee posted a link to a video that will show you the h wave.
The link is posted in the Bedini SG thread here.
Ahh. that is a very good video of an H-wave.
Inductor in a Trigger Circuit
Sorry for my wine. Although i did get a response. :P Normally wouldn't use such tactics. (I feel shame) I've had trouble discussing these topics with friends and familly and i think i'm developing a bit of a complex.
Thanks Aaron.

Your vids have been very helpful as well.
Sephiroth wrote:
Hi thedude (lebowski I presume?
),
Can't really comment on your set up as I haven't used the cap set up though your occiloscope shots are interesting as they show something a single coil occiloscope shot doesn't.
Since no one has said anything yet here are a few of my observations:
as the voltage induced by the magnets increase you can see there is a slight dip in the rate it is increasing at around the point the opposite coil fires. This shows the slight delay between the transistor turning on and the coil becoming fully energised. The dip is caused by the rotor magnet's attraction to the core after it has passed the center mark and momentarily adds drag on the rotor. Probably not significant but interesting to see.
also your "blue coil's" flyback voltage isn't dropping as low as your "red coil" because it is staying on longer and so the voltage induced by the magnets increases to a higher level before the coil discharges.
and the flyback voltage on your red coil is much briefer. Probably because the current is being cut off before the coil is fully energised. This seems like a good thing as less current is being wasted.
out of curiosity... why have you tuned your coils to fire for different lengths of time?
I'm afraid I can't view the videos on your site
Maybe because I am using Opera.
Thanks for the observations. I had looked at some tutorial info on interpreting oscilloscopes, but still could not arrive at exactly what i thought i was seeing. To be honest what has been explained here and as well as the video were not what i had guessed that the wave form was showing. This really has cleared things up for me.
I haven't set up a capacitive discharge system yet. i have amassed a nice collection of photo flash capacitors though.

My experience with caps, ohms, farads is nearly next to nil, but i will say this, I am really enjoying myself with my SSG project and couldn't imagine any better way to experience and learn electronics first hand. I've been having a blast, and i think thats whats missing for me is that i don't have anyone to get excited with. Everyone i associate with is stuck in some sort of dogma that defies change. As well as a capacitive discharge system in the circuit, i can really see the benefit to a battery swapping circuit and I'm investing in that direction as well.
With regard to the tuning of the coils I had ran tests with a constant supply of voltage and had tuned it by setting the resistance on the trigger with regard to the lowest current draw i could achieve while maintaining the highest RPM i could manage to get. I still haven't put in resistors in place of my pots, although i might add that they were expensive pots and i hope they are relatively consistent. In short i adjusted each coil separately on its own pot to find what felt like a light load with high rpms. (not very solid)
So if what i'm understanding is correct, would the top of the hump in the h-wave represent an equidistant point between two magnets?
As far as Modvid.com is concerned i built it on phpmotion 1 just as phpmotion 2 came out. 2 emulates the current version of Youtube more closely, however i can change the plug-in flash player that the script calls to serve the movie on the client side. I'm going to look into a different player. I have Opera running on my laptop with freebsd, so i will definitely do some compatibility tests. Thanks for the heads up. Site hasn't been up for too long so i still have a few bugs to sort.
Today my MJL21194 transistors arrived so i can swap out my 2n3055's and see what difference there is. I won't get my hopes up too high. :P
Thanks again guys.