Gray Tube Replication

[martin]

I can open the picture with Windows Picture and Fax Viewer and there's a manify button I can click a few times to enlarge the image. I looks identical to the third picture you attached, even with the roll of paper towels. The caps are vertical and are unconnected.

The circular items I was talking about are behind the little transformer on the board that powers the fluorescent bulb.

mlurye, they very well could be batteries, but my picture is so granulated I cant make it out. You can be sure there's a reason Gray had it covered!

[Electrotek]

To me it looks like 6 x 1.5V batteries = 9V total and there is fluorescent bulb in front. So I guess it is HV converter and bulb there is to test it.
Schema on blackboard has transistor and relay that suppose to generate impulses, impulses drawn below schema.

Electrotek: If you have relay and coil in relay is being powered from a source of energy through contacts that are normally connected. If relay is powered contacts are getting disconnected and in general you are getting vibrator. What frequency you can get with device like that? In our case we are talking about 12V relay.

The frequency depends on the size and mass of the relay and its armature, as well as the stiffness of the return spring. The one in the picture will probably work around 200 pps. You can go a lot higher with smaller units, but the current will go down.

[What The Flux]

Quenching the spark

OK gang, I need help getting to the next step. Aaron, you said you have had no trouble getting a spark into a reversed diode. I'm having a lot of trouble doing that.

I took my setup which, without the choke coil, is giving me a nice 5mm plasma discharge (see my last video) . I've forward biased my diode with 24V (two drill batteries), connected the negative of the battery back to my coil ground, and can't even get a small spark. I tried both a MO diode and my string of 8 1KV diodes, and still no luck.

Conceptually I'm still having trouble with part of this concept as well. I don't understand how putting a + voltage on the anode forward biases the diode if you don't have any connection on the cathode. It seems that if nothing's connected to the cathode, both ends have the same potential, which means the diode isn't really starting out forward biased when you hit it with the HV pulse.

Any help is appreciated.

[Aaron]

Super Video

For converting demo vids

This program will convert just about any format to any format..it's free and does more than just about any paid program.
http://www.erightsoft.info/GetFile.php?SUPERsetup.exe
All codecs are built in.

Vlc player will play virtually anything...small free player.
VLC media player - Overview

[Aaron]

book

Aaron

Thanks for the link to the book. Strange that many of the figures are missing from the scanned book!

Regards

John

Hi John,

Interesting, google does that to patents too.

If you go back to the link at archives.org, you can download the book in a different format instead of google's pdf - might be complete.

[Aaron]

diode

Conceptually I'm still having trouble with part of this concept as well. I don't understand how putting a + voltage on the anode forward biases the diode if you don't have any connection on the cathode. It seems that if nothing's connected to the cathode, both ends have the same potential, which means the diode isn't really starting out forward biased when you hit it with the HV pulse.

If you take a multimeter and put negative on the battery negative and put the positive on the cathode...you will see the voltage of the battery minus the voltage drop through the diode if any. When you see this voltage, you know the diode is open. Nothing needs to be connected to the cathode. So the HV will see path to ground because if you can measure the battery voltage on the cathode...it is a straight shot to it's own ground. HV jumps and as soon as the cathode voltage is higher than the annode, it closes at whatever speed the diode is rated for.

I use these diodes: http://doc.chipfind.ru/pdf/surge/6a100.pdf (6A 1000v)

The exact setup you show in the schematic should work perfectly. The cap isn't isolated from the power supply when the relay makes contact the power supply could contribute to powering the primary.

Are you able to measure 24v on the cathode if you put the negative on the ground of the battery?

[mlurye]

WTH,
Are you planning to put 220V impulse on primary of ignition coil? Be very careful about that.
Also about diode you can do what Aaron sad, I was using 3 x 1N4007.

[Electrotek]

What The Flux: If all else fails, try replacing the cap's diode with a small arc gap. That's how Beshires got the circuit to work, by including the commutator's arc gap.

[Aaron]

isolate the power supply

OK gang, I need help getting to the next step. Aaron, you said you have had no trouble getting a spark into a reversed diode. I'm having a lot of trouble doing that.

If you use a DPDT relay, you can make sure the power supply is isolated from the ignition coil.

Put the cap on the common and in NC position, it charges from supply, when relay is triggered, common moves to NO, which dumps cap to ignition coil..that way, there is no chance for power supply to be dumped directly to primary.

I wonder if the power supply may have killed the coil or over powered the diode?

[amigo]

I probably could, if I could open the DVD disc.

You can use Handbrake to rip the DVD disc to AVI:

HandBrake

[braden]

Gray tube with motor

Sorry if this has already been psoted
YouTube - EV GRAY Pulse Motor (Experiment #1)

[mlurye]

If somebody did watch, I do believe this movie is very important and I would advise to watch it to the end http://www.energeticforum.com/renewa...html#post24894

[Electrotek]

Reverse Bias Diode Test

I set up a test to see if reverse biasing a diode with a higher voltage than applied in the forwards direction will turn the diode off.

I placed a MO diode in series with a 12V. light bulb. When I connected this to a car battery, nothing happened. The voltage across the diode measured at 7.2V. So I added another car battery, in series. This time, the bulb did light up. Then when I connected my mains powered ignition coil module across the diode, the light did not go out.

Reverse biasing a diode with a higher voltage does not turn the diode off, when it is still forwards biased with the lower voltage. Something else besides the Step Recovery Diode effect must be responsible for the Water Sparkplug effect, and my Puff Spark effect. Especially since I'm not using a diode in my discharge circuit. Also, it's been reported that the Sparkplug plasma effect will work with a spark gap, rather than a diode.

As I understand the Step Recovery Diode pulse effect, the HV polarity itself has to reverse, and there is no LV forwards bias present. Otherwise, the SRD will not turn off and will not produce a pulse.

[Electrotek]

Plasma Spark With Two Caps And No Coil

Horbour Freight sells a little bug zapper paddle for around $3, when it's on sale. These make a respectable spark at 1500V. So I got two of them, and disassembled them, so that I had just the output wires.

For my test, I charged both units, then turned the power off. I was able to get a small Puff Spark effect (plasma spark) by discharging both units across the same spark gap, with one unit in series with an inductor.

It seems to me that the plasma spark effect is caused by combining two discharges which have different time constants. This works if one spark is from a coil and the other is from a capacitor, or if both sparks are from capacitors.

[martin]

I set up a test to see if reverse biasing a diode with a higher voltage than applied in the forwards direction will turn the diode off.

I placed a MO diode in series with a 12V. light bulb. When I connected this to a car battery, nothing happened. The voltage across the diode measured at 7.2V. So I added another car battery, in series. This time, the bulb did light up. Then when I connected my mains powered ignition coil module across the diode, the light did not go out.

Reverse biasing a diode with a higher voltage does not turn the diode off, when it is still forwards biased with the lower voltage. Something else besides the Step Recovery Diode effect must be responsible for the Water Sparkplug effect, and my Puff Spark effect. Especially since I'm not using a diode in my discharge circuit. Also, it's been reported that the Sparkplug plasma effect will work with a spark gap, rather than a diode.

As I understand the Step Recovery Diode pulse effect, the HV polarity itself has to reverse, and there is no LV forwards bias present. Otherwise, the SRD will not turn off and will not produce a pulse.

Excellent test! So basically you'd have 2 seperate spark gaps? Has anyone tried this?