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[forest]

The ordinary way described by Tesla and followed by others is to charge HV capacitor and discharge abruptly into short coil. Do you agree with that ?

I'm not sure but apparently in my old experiments I managed to perform the same on smaller scale and DIFFERENT METHOD - using electronics.

The key is to charge big capacitor of lower voltage and discharge into coil of very high inductance and being in the same time a stepping-up coil (flyback) . I had got that event once and it was complete accident (never was able to reproduce)
I used 2200uF/25V cap charged from 12V car battery , discharged using MOSFET BUZ 90 with a lot of surge protectors around, slowly at a rate around 180-240 hz using quite simple driver based on logical gates (I'm not  EE , it is only one of my hobbies).
I used very small spark gap, actually it was broken filament bulb. The return path was metal from tabletop to the metal cover of car ignition coil.

The effect was "something" which resemble static charge all around flowing on all conductors of circuit back to the battery and constituting spherical shield around bulb. When I tried to touch it with metal screwdriver with neon it kicked me off and I dropped it.

I was quite scared because I couldn't be able to shut down power from battery.All around was kicking.

And I used clear plastic speaker multi-stranded wires  :-)
I think that large inductance of car coil caused unidirectional discharge - stopped all back rush.


I'd like to see any replication if possible.My knowledge is limited but I think that it was a good way to learn of radiant if we can remove some problem like radiant spread over primary.Another thought is to place spark gap very close to the coil ( I think the cause of radiant was the break in filament acting as spark gap and the rest of dangling filament acting as a high resistance coil)

Is somebody interested ?

[Grumpy]

G

I got confirmation from a friend on my ideas that two saturable inductors can be used in parallel with a few nanoseconds of delay ( few feet of wire ) to create a tail-biter circuit. First one snaps the dc power off and the second is ready with collapse to turn the dc back on..

The trick is to wire the delay in the trigger of number 2 and space the repetition rate of the event so there is enough time for this process to occur.

i.e.. number 2 fires first but number 1 is still conducting.... then 1 fires and no one is conducting... then a few nanoseconds later number 2 goes into collapse and conducts ... so the result is a sharp snap off snap on of your hv dc bias

may be why two are present on the more powerful unit

Here are the "Two transformers slightly out of phase"

.

yup

or turn it off with a reflection

good conversation going on here now

Don't choke it - let it breath...

Best clue I ever got was "solar flare" - over three years ago - thanks bro!

I'll look if Steinmetz looked at transients in tank circuits - he would have been the one to put the math to it - or not, as the case may be.

[Grumpy]

G

I got confirmation from a friend on my ideas that two saturable inductors can be used in parallel with a few nanoseconds of delay ( few feet of wire ) to create a tail-biter circuit. First one snaps the dc power off and the second is ready with collapse to turn the dc back on..

The trick is to wire the delay in the trigger of number 2 and space the repetition rate of the event so there is enough time for this process to occur.

i.e.. number 2 fires first but number 1 is still conducting.... then 1 fires and no one is conducting... then a few nanoseconds later number 2 goes into collapse and conducts ... so the result is a sharp snap off snap on of your hv dc bias

may be why two are present on the more powerful unit

Here are the "Two transformers slightly out of phase"

.

See US patent 7122999

[darkspeed]

See US patent 7122999

Fig 4  looks familiar..... Thanks!

That may be better than the two magamps

http://www.google.com/patents?vid=USPAT7122999

Someone asked me how to recognize a radiant event..  Here is a good rule of thumb... When you have to rip off your jeans in the middle of an experiment because the rivets and zipper are electrocuting you... you know you are close....

[wattsup]

Someone asked me how to recognize a radiant event..  Here is a good rule of thumb... When you have to rip off your jeans in the middle of an experiment because the rivets and zipper are electrocuting you... you know you are close....

So I guess that confirms then that the TPUs are not radiant related cause while the LTPU was operational, I didn't see even one of those investors jumping up and down in pain. lol