K2 said...
....Too bad Stong's Oudin coil implementation is a loser, as is the idea of using an O1A tube (after all the wasted effort to find one!). It took some time and a total rework in order to produce anything worthwhile....
I never tried that design myself, but if you don't mind sharing your experiences in making a generator, etc., please do. By chance did you use a Propeller chip in any of your devices or experiments? My wife recently bought some artsy photos that are radiographs of flowers, etc. now hanging on the walls. It's an interesting effect.
40kV car coils are fun !! with a 555 and a MOSFET.
BUT PLEASE PUT A 1/8 HOLE IN THE TOP PLASTIC SECTION SO IT WONT EXPLODE !!!
I had one blow its entire Oil contents in my face . thankg god I wear a face sheaid ..
.
I started with a car coil Feeding a 2" TeslaCoil and roughly 7-8 years later was to " PolePig" status spitting out 10 footers with ease
BTW Low voltage Outdoor lighting cable for garden lights is good to 20-30kV and with 1/4 Tubing over it I have used it to 45kV +!
the sheer amount of insulation makes it well suited for HV ironically...
Peter KG6LSE
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"Carpe Ducktum" "seize the tape!!" peterthethinker.com/tesla/Venom/Venom.html
Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway. —Tanenbaum, Andrew S.
LOL
"By chance did you use a Propeller chip in any of your devices or experiments?"
The Propeller was just a gleam in Chip's eye when I last produced a radiograph of any sort: Since the days of Roentgen and Nobel, there have come into existence all sorts of laws that have put a damper on a whole lot of my hobbies.
The voltage source used to produce the radiograph above was just the aforementioned Accel ignition coil driven by a Motorola (now ON) bipolar power transistor. High voltage, low on-resistance power MOSFETs weren't really available at the time. Nowadays a simple IGBT would be perfect for the job...something like a G4BC30u.
A capacitor on the ignition coil's primary is a must. A value of 0.2 uF works great.
'ON' time depends on the applied voltage and the primary resistance. You want a current between 4 and 8 Amps. You can get fancy with all kinds of snubber networks or you can just leave the transistor off sufficiently long for the magnetic flux to recover and oscillations to subside.
With a Propeller, you could do all sorts of fancy things. The most sophisticated chip I used in this application was just the lowly 16C54. Even the SX was still years away.
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"Let's not bicker and argue about who killed who."
The voltage source used to produce the radiograph above was just the aforementioned Accel ignition coil driven by a Motorola (now ON) bipolar power transistor. ....
"A capacitor on the ignition coil's primary is a must. A value of 0.2 uF works great." <- Even better if you can excite the ignition coil/capacitor combination at it's resonant frequency.
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔ Beau Schwabe
IC Layout Engineer
Parallax, Inc.
. said...
The only really hard part to find will be the flux capacitor.
I hate to sound like a know it all , but doesn't a cap have Flux when charged ?
electrostatic flux between the plates ?
one could say all caps can have flux ?
Not to mention the flux left on the leads from a poor solder job LOLS
Peter KG6LSE
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"Carpe Ducktum" "seize the tape!!" peterthethinker.com/tesla/Venom/Venom.html
Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway. —Tanenbaum, Andrew S.
LOL
"Even better if you can excite the ignition coil/capacitor combination at it's resonant frequency."
Yes, except the circulating current is so high that the I2R losses would shortly boil the oil, like Peter mentioned.
"What did you use for an x-ray tube?"
Just like with the power supply, there are all sorts of solutions. (BTW, the 'best' power supply imho is a properly engineered voltage multiplier - straight DC with very little ripple facilitates a very sharp focus and consistent spectrum.)
Kaye's book "X-Rays" (now in the public domain) provides all sorts of ideas (reading between the lines) for gas-filled tubes with minimal pumping requirements. Of course the quickest and simplest solution for most people would probably be a small hot-cathode dental tube. Dunlee, Toshiba, Eureka, and Brand-X all make (or made) great tubes. I've got it on good authority that Hangzhou Wandong Electronic Co., Ltd. is right up there as well...and bound to be less expensive. Just don't burn out the filament! A shoddy, haphazard, extemporaneous filament supply will cost you dearly. And check the legality of owning an X-ray tube. One nice thing about constructing and evacuating your own gas-filled (cold cathode) tube is that it's probably legal, certainly innocuous, and most likely unrecognizable.
BTW, anyone experimenting with this sort of thing really ought to consider doing to remotely. It should be away from people and away from yourself, even if you are generous about the lead shielding. Being charged with reckless endangerment would ruin your day.
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"Let's not bicker and argue about who killed who."
I watched the video but I still don't understand what you - and that other guy - are trying to do. Why don't you just explain in words what you're trying to accomplish?
Watching that man push his little boards around reminds me of the days when everyone had to tweak their "bunny ears" antenna to get a program on TV. I'm guessing it's a standing wave phenomenon.
But what's your topic? What's the goal? And if words aren't your forte, how about a rap song? or a dance interpretation? Right now you're giving us a few components and a Rorschach blot.
Seriously, the unknown always has a magical appeal. Once it's all explained and understood, it loses much of the magic. I think CL suffers from a vivid imagination and a diffuse focus. He's not exactly alone in that respect.
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"Let's not bicker and argue about who killed who."
Comments
I never tried that design myself, but if you don't mind sharing your experiences in making a generator, etc., please do. By chance did you use a Propeller chip in any of your devices or experiments? My wife recently bought some artsy photos that are radiographs of flowers, etc. now hanging on the walls. It's an interesting effect.
BUT PLEASE PUT A 1/8 HOLE IN THE TOP PLASTIC SECTION SO IT WONT EXPLODE !!!
I had one blow its entire Oil contents in my face . thankg god I wear a face sheaid ..
.
I started with a car coil Feeding a 2" TeslaCoil and roughly 7-8 years later was to " PolePig" status spitting out 10 footers with ease
BTW Low voltage Outdoor lighting cable for garden lights is good to 20-30kV and with 1/4 Tubing over it I have used it to 45kV +!
the sheer amount of insulation makes it well suited for HV ironically...
Peter KG6LSE
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"Carpe Ducktum" "seize the tape!!"
peterthethinker.com/tesla/Venom/Venom.html
Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway. —Tanenbaum, Andrew S.
LOL
This is exactly why I made this post!
The Propeller was just a gleam in Chip's eye when I last produced a radiograph of any sort: Since the days of Roentgen and Nobel, there have come into existence all sorts of laws that have put a damper on a whole lot of my hobbies.
The voltage source used to produce the radiograph above was just the aforementioned Accel ignition coil driven by a Motorola (now ON) bipolar power transistor. High voltage, low on-resistance power MOSFETs weren't really available at the time. Nowadays a simple IGBT would be perfect for the job...something like a G4BC30u.
A capacitor on the ignition coil's primary is a must. A value of 0.2 uF works great.
'ON' time depends on the applied voltage and the primary resistance. You want a current between 4 and 8 Amps. You can get fancy with all kinds of snubber networks or you can just leave the transistor off sufficiently long for the magnetic flux to recover and oscillations to subside.
With a Propeller, you could do all sorts of fancy things. The most sophisticated chip I used in this application was just the lowly 16C54. Even the SX was still years away.
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"Let's not bicker and argue about who killed who."
What did you use for an x-ray tube?
thanks,
Mark
"A capacitor on the ignition coil's primary is a must. A value of 0.2 uF works great." <- Even better if you can excite the ignition coil/capacitor combination at it's resonant frequency.
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
Beau Schwabe
IC Layout Engineer
Parallax, Inc.
I hate to sound like a know it all , but doesn't a cap have Flux when charged ?
electrostatic flux between the plates ?
one could say all caps can have flux ?
Not to mention the flux left on the leads from a poor solder job LOLS
Peter KG6LSE
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"Carpe Ducktum" "seize the tape!!"
peterthethinker.com/tesla/Venom/Venom.html
Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway. —Tanenbaum, Andrew S.
LOL
Yes, except the circulating current is so high that the I2R losses would shortly boil the oil, like Peter mentioned.
"What did you use for an x-ray tube?"
Just like with the power supply, there are all sorts of solutions. (BTW, the 'best' power supply imho is a properly engineered voltage multiplier - straight DC with very little ripple facilitates a very sharp focus and consistent spectrum.)
Kaye's book "X-Rays" (now in the public domain) provides all sorts of ideas (reading between the lines) for gas-filled tubes with minimal pumping requirements. Of course the quickest and simplest solution for most people would probably be a small hot-cathode dental tube. Dunlee, Toshiba, Eureka, and Brand-X all make (or made) great tubes. I've got it on good authority that Hangzhou Wandong Electronic Co., Ltd. is right up there as well...and bound to be less expensive. Just don't burn out the filament! A shoddy, haphazard, extemporaneous filament supply will cost you dearly. And check the legality of owning an X-ray tube. One nice thing about constructing and evacuating your own gas-filled (cold cathode) tube is that it's probably legal, certainly innocuous, and most likely unrecognizable.
BTW, anyone experimenting with this sort of thing really ought to consider doing to remotely. It should be away from people and away from yourself, even if you are generous about the lead shielding. Being charged with reckless endangerment would ruin your day.
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"Let's not bicker and argue about who killed who."
Some how a tree trunk should come into play here. Anyone ever use a plant as a cap? Somehow use the layers.
And with some kind of remote control.
Ir, laser, radio, optic fiber.
Post Edited (Clock Loop) : 7/12/2010 6:24:33 AM GMT
www.youtube.com/watch?v=qoG4vxO7m6U
I watched the video but I still don't understand what you - and that other guy - are trying to do. Why don't you just explain in words what you're trying to accomplish?
Watching that man push his little boards around reminds me of the days when everyone had to tweak their "bunny ears" antenna to get a program on TV. I'm guessing it's a standing wave phenomenon.
But what's your topic? What's the goal? And if words aren't your forte, how about a rap song? or a dance interpretation? Right now you're giving us a few components and a Rorschach blot.
Seriously, the unknown always has a magical appeal. Once it's all explained and understood, it loses much of the magic. I think CL suffers from a vivid imagination and a diffuse focus. He's not exactly alone in that respect.
▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
"Let's not bicker and argue about who killed who."
Oh, you have it all wrong, no kinda suffering going on here. My focus changes depending on my situation.
Perhaps this video will help clear things up?
I don't think it will, but lets just add this one to the list.
www.youtube.com/watch?v=de3zVjB78Gc
A rodin coil.
Thanks for all the help with tips yall.
A coil by Rodin? Hmmmm.... I'll have to think about that one.
This thing needs a cd turbine also!
www.youtube.com/watch?v=L8v_dnIn-s0
(so it sounds like a FAST CAR) (sound effect only)
www.youtube.com/watch?v=kCsSVLZ6wCI
and install it all on a DeLorean LOCOMOTIVE.
www.youtube.com/watch?v=zgRrM-gsE38
Post Edited (Clock Loop) : 7/12/2010 7:30:51 PM GMT