"Melvin, it's all right, you're already dead."
The gap shown is 55 mm.
I finally seem to have stopped blowing mosfets, and I've installed some fans and buzzers to help me keep it that way.
I had several bad incidents over the weekend: One overheat under power that exploded a irf640 like a small gunshot, and another failure of an expensive irfpgsomething or other that wound up blowing all four of them as well as a couple sets of gate voltage regulating zeners. But I understand a lot more about troubleshooting the unit now!
I also got a nasty RF burn on my left index finger yesterday. Just a tad more and I'd probably lose the finger. As it is I've cooked a couple cc's of meat in my finger, and my body is just starting to realize it. It's a small wound but an ugly one, and I'm not sure just how bad it really is.
THIS IS NOT A TOY.
(Well, it is, really, but not one for the kiddies.)
There are several "screw the pooch" modes available for the careless or inexperienced. I at least know now not to touch the secondary while it's running, even down low. And the blue-white electric flame that I show here is HOT. I'm quite certain I could roast a weenie above it, no problem. And if the secondary isn't grounded or provided with a return, you can get the same flame at the BOTTOM of the resonator, and that can ruin your whole day.
Especially if the fire department turns your basement apartment into a swimming pool.
You can also get weird arcs and sparks from other, unconnected stuff, especially coils and whatnot. I'm continually checking for smoke and smells.
Fr=~820 kHz (sorry George Noory, and thanks); mosfets IRFP252 x 4 ; input 70 VDC at 2.5 amps (power arc) to 8+ amps (corona) so let's call it a half-kegger; that's quite a bit of power for a tabletop unit. I hope I don't get any visits from the MIBs. The gap shown is 55 mm.
I think I'll stick to Einstein and Boltzmann for now.
janne808 2 years ago
Well, er, OK.
(nods head sagely, scribbles something in little notebook)
How about the Correas? Chernetsky? The brothers Corum? Grebennikov? (just kidding about Grebby, he's cool).
TinselKoala 2 years ago
It's all on discrete boltzmannian hexagon lattice spacetime. Hannes wouldn't approve, but what does he know about computers anyway.
janne808 2 years ago
Anthony Peratt: a graduate student of Hannes Alfven. Carl-Gunne Fälthammar succeeded Hannes Alfven as Professor of Plasma Physics at the Royal Institute of Technology in Stockholm in 1975. I'm delighted to hear you've oriented yourself in the electric cosmological direction - this is the future. The old standard model is to narrow and limited and was an attempt to reconcile science with St. Thomas Aquinas' theological dictum of creatio ex nihilo. Won't work.
plasma-universe(.)com
QIQrrr 2 years ago
You have an MHD model on spare time? Now that's interesting. I have unread emails from respected scientists in my inbox queue that have titles like "Swimming thru Spacetime"; I wonder if Swimming thru Sparetime, propelled by crossed E and M and the geometrics of the Poynting vector, is also covered in there. Sparetime Sleppian!
I suppose we had better be glad we can't actually drop an anchor into the ether...it would be snapped away at the "intrinsic" velocity of the Earth, less L-T framedrag.
TinselKoala 2 years ago
Yes. Falthammar I don't know. Perrat...Perault, perhaps? Birkeland of course. And I dig the TB site and love the pictures of the days. I am a believer in the plausibility of the whole "electric universe" construct. My experience with electrostatics, pulsed power, and vacuum systems leads me to have the strong opinion that electrodynamics must be considered as a viable explanations for some of the features and phenomena we observe in space. Also in our own upper atmosphere.
For sure.
TinselKoala 2 years ago
I'm home. In addition to Alfven you have Kristian Birkeland, Carl-Gunne Fälthammar and Anthony Peratt...and Tesla of course. All great scientists in the field of plasma physics and electricity - the future of modern science I think.
QIQrrr 2 years ago
Yes Alfvén is great. Coincidentally I'm putting together a general lattice framework for (magneto)hydrodynamic models on my sparetime..
janne808 2 years ago
Sounds plausible. Interesting indeed. If you're not familiar with the site: thunderbolts(.)info has a forum ranging from serious stuff related to plasma physics and electricity to the more exotic stuff. Anyway: looking forward to more videos. Stay safe.
QIQrrr 2 years ago
Spirit radio -- the modulation of the arc that happens around 6:10 or so is from me touching the timing capacitor of the PWM chip. I think this might cause the coil respond not to the radio in the room but rather to the broadcast itself. Late at night, after many hours of experimentation, when I tune it just right I know I can hear things, things that sound like voices, electric voices, but I can't quite make out what they are telling me.
I listen, but I still don't know.
TinselKoala 2 years ago