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Ok I searched through my links and found it, doesnt look as though the guy has finished it.

http://aaawelder.com/reactor.html

I made one rough, it does work allthough the control side seems...

Dapug yes thats correct, mine uses thyrister burst firing to control the current.
If an arc welder transformer is used then this is less of a problem, as arc transformers, well cheaper ones that is,...

You dont have to use smoothing caps, allthough if you do you'll have better pen, as the average DC voltage will be higher, but try without first.
If you use an arc starter on a DC set, then its...

Mine does work now, only its not as intended driven by a alternator, its powered from a stick welder, HF works ok, and variable power control works ok, I had a bit of troublwe with the tranny getting...

I posted the video to show that oxygen cylinders can be dangerous, something in that video caused the bottle to explode and melt, so summat burned up well.
The relavence to the video and the bottle...

Some good advice there.
I think filling with water is a good idea, maybe emptying it at least a little before you drill, the main thing with the water business is that it proves that the valve on...

This is a video of the aftermath of an oxygen cylinder going up, theres no real nasty bits, but there are a few blood stains.
The guy was trying to unscrew the valve on a part full cylinder to let...

Your right it is dangerous, oxygen cylinders can explode, very nasty.
If its a disposable then you'll have problems getting it filled, esp with another non standard hole bashed in the side, cylinder...

12vdc via a variable pwm driver.

Ok then so I have made the ignition coil driver circuit, and the tank coupling coil and tank cap, the tank coil has 10 1 inch interference suppressor type ferrite cores on the inside, held together...

Normally I'd agree with that, the subject seems to be one for conjecture though.
Heres a link to a photo of my coil driver circuit completed, just above the snips to the right is the arc produced...

The condensor or capacitor is an important part of the car ignition and it can shape the envelope of the coils primary waveform.
And the circuit I looked at has nothing accross the coil, theres a...

You can buy them, allthough the last one I looked at was more expensive than buying a cheaper weld set that allready had hf start.

Yep I see what you mean, heres to explain.

My control board for the alty has both a current limit pot and a voltage regulation pot, so you can either adjust the pots to give constant current with...

Thanks for the warning I did and they are resistive, I think most leads are nowadays to prevent emi.

Had a very interesting idea about the output choke using an mot, make the thing infinately...

Yep thanks for that iedd a good reply, a few designs I've looked at including commercial ones just have a filter cap accross the rectifryer to protect against the rf from entering the bridge and...

Yes me too, I'm getting mellow in my age, I dont fall out with folks anymore.
About half of my valve sets have the choke in the speaker you mentioned, they did it as magnets were difficult to make,...

Thanks for the links.
I understand your confusion, I said stuff that shows my understanding of the application followed by something totally contradictory, however I'm not bonkers, I think we are on...

Yep I think I have got a good idea on my design now.
Regards rf suppression, commercial sets and home built stuff from what I've seen just have a cap accross the output of the welder supply to short...

Cool thanks for sharing that, I like your machine.
I'm not too bothered about the space, and actually I like your plan with the 'plugs in a bit of drilled and tapped steel.
What was the gap on the...

well thats interesting, looking at other drawings and the one you reffered to I think I'll do things diffo than the hf start box I have been looking at.
A car ign coil I presume can withstand the...

Yep thats right its the one with the old automotive ign coil and the lamp dimmer, the output coupling xformer is a tv line output yoke.
The schematic looks diffo to the layout in the photo's, I was...

Hi Chaps, I'm going to revive this thread a little.

Further up there is a reference to a site that describes a 'hf start box' and uses a car ignition coil.
This is a great project, only when I...