My first WFC/VIC

[supermuble]

I had the idea of using a 20-35kv car coil for the step up transformer. On a car ignition the spark is created via back EMF. The spark its self is actually only back EMF. If you put AC voltage or DC voltage into the coil, the back EMF spike is not created in the secondary coil and you don't get anything close to 20,000 volts, in fact, the spark won't even jump through open air. The automotive coil only works if you have a condenser. Anyway I don't know if this is what Meyer used.

So I pulsed 20kv back EMF into a bifilar coil with an air core. I pulsed the car coil with 12 volts, 25 hz. I put a 1000v block diode on the positive post of the coil. I used two spoons for the electrodes. Well it made hydrogen. I got a small step charge effect using 50% duty cycle. Some curious things are that the step charge looked backwards on the scope, it seemed to start high and then go down?

Anyway:

I destroyed my computer sound card. I was feeding a car audio amplifier, and from the car amplifer I was feeding an automotive spark module. I have done it a lot without failure, but this time I accidentally took one of the wires off and I got 20,000 volts that had nowhere to go, so it jumped to speaker wire feeding my car amplifier, which then in turn went back into my sound card. I am lucky my computer even works. My sound card barely plays music, it is muddled with static.

I also burned up my Oscilliscope because when the wires came loose, the voltage jumped to one of the wires on the scope.

So I lost my computer sound card, and my $200 scope. I learned the hard way so you guys don't have to. I am new to electronics, and I should have known better. My only advice.... DO NOT use alligator clips with 20,000 volts!!!!!!! Solder all the wires and make sure they are PERMANENT... A loose wire with 20KV is NOT safe! ha ha 

[fritz]

..... there is an ignition coil on my bench.....
but I stopped experimenting after I had some accident .....
- only dead scope probe -

There are nice HV probes from 500-1000 bucks...... but
thats too much now.

Will hook up the ignition coil - my setup´s better now - and will use
some almost-dead scope.

Reverse step charge effect ?
If you used a pulse train - than the frequency was too high....
If the coil has not enough time to releas all energy on a pulse -
the next charging happens on top of the old flux - means that
the flux variation is smaller than possible - every consecutive
pulse charges with less energy until the coil is saturated.
Only the first pulse reaches maximum energy.
(remote analysis)


rgds.

[kinesisfilms]

I had the idea of using a 20-35kv car coil for the step up transformer. On a car ignition the spark is created via back EMF. The spark its self is actually only back EMF. If you put AC voltage or DC voltage into the coil, the back EMF spike is not created in the secondary coil and you don't get anything close to 20,000 volts, in fact, the spark won't even jump through open air. The automotive coil only works if you have a condenser. Anyway I don't know if this is what Meyer used.

So I pulsed 20kv back EMF into a bifilar coil with an air core. I pulsed the car coil with 12 volts, 25 hz. I put a 1000v block diode on the positive post of the coil. I used two spoons for the electrodes. Well it made hydrogen. I got a small step charge effect using 50% duty cycle. Some curious things are that the step charge looked backwards on the scope, it seemed to start high and then go down?

Anyway:

I destroyed my computer sound card. I was feeding a car audio amplifier, and from the car amplifer I was feeding an automotive spark module. I have done it a lot without failure, but this time I accidentally took one of the wires off and I got 20,000 volts that had nowhere to go, so it jumped to speaker wire feeding my car amplifier, which then in turn went back into my sound card. I am lucky my computer even works. My sound card barely plays music, it is muddled with static.

I also burned up my Oscilliscope because when the wires came loose, the voltage jumped to one of the wires on the scope.

So I lost my computer sound card, and my $200 scope. I learned the hard way so you guys don't have to. I am new to electronics, and I should have known better. My only advice.... DO NOT use alligator clips with 20,000 volts!!!!!!! Solder all the wires and make sure they are PERMANENT... A loose wire with 20KV is NOT safe! ha ha 

your not step charging! when i first started this happened to me.....if you want to see what step charging is just take that 50 percent duty cycle and run it through a bridge recitifier to get a full wave rectified signal....then look at your oscope.....you will have the correct wave form.....do this so you can understand step charging......

[fritz]

Hehe....

Hooked up an ignition coil to my pulser setup, pulsed wtih 40Volts
and got _N I C E_ 5cm sparks -> thats around _50kV_.
After 10 seconds - something died - hopefully only a spontaneous
flash corruption in my controller - but anyway 5cm sparks is
quite impressing...

rgds.

[alan]

Hehe....

Hooked up an ignition coil to my pulser setup, pulsed wtih 40Volts
and got _N I C E_ 5cm sparks -> thats around _50kV_.
After 10 seconds - something died - hopefully only a spontaneous
flash corruption in my controller - but anyway 5cm sparks is
quite impressing...

rgds.

Cool, that is what I suggested before.

Show us your schematics, maybe we can figure out why it dies.