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Author Topic: RESONANCE EFFECTS FOR EVERYONE TO SHARE  (Read 298212 times)

gotoluc

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #315 on: January 04, 2009, 01:04:19 AM »
Hi All,

I'm sorry to report that my fixed oscillator switch (najman100 PCB) will not work as it is designed!

I have soldered up the PCB and tested the circuit today. First I found a design flaw, pin 16 on
the CD4009 was not connected to +12 volt. This is easy to correct, just solder a wire between
pin 1 and pin 16 on the IC.

After I corrected some soldering errors (mine) then I got the circuit as described in the drawing.
But, I encountered another problem, the crystal oscillator will NOT run. First I thought that I
had used a crystal frequency that was too high for the 4009 so I changed the crystal to 4 MHz
just to check. Still the oscillator did NOT run correct. I then rechecked the data sheet for
the CD4009 and saw that the IC does not have smith trigger inputs. So the oscillator will
not run with this IC no matter what I do.

The rest of the circuit performs well so I will modify the circuit to use an external oscillator input.
Attached is the updated drawings for such a circuit.

Again, I'm very sorry to have made such a huge mistake and wasted time for everybody.
As I said, the circuit will still work with an external oscillator from a signal generator.

Groundloop.

Hi Groundloop,

the board looks great ;D... I'm sorry to hear it's not working as you had thought.

Thanks for letting us know so quickly and offering a solution.

Luc


najman100

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #316 on: January 04, 2009, 01:05:16 AM »
Hi All,

I'm sorry to report that my fixed oscillator switch (najman100 PCB) will not work as it is designed!

I have soldered up the PCB and tested the circuit today. First I found a design flaw, pin 16 on
the CD4009 was not connected to +12 volt. This is easy to correct, just solder a wire between
pin 1 and pin 16 on the IC.

After I corrected some soldering errors (mine) then I got the circuit as described in the drawing.
But, I encountered another problem, the crystal oscillator will NOT run. First I thought that I
had used a crystal frequency that was too high for the 4009 so I changed the crystal to 4 MHz
just to check. Still the oscillator did NOT run correct. I then rechecked the data sheet for
the CD4009 and saw that the IC does not have smith trigger inputs. So the oscillator will
not run with this IC no matter what I do.

The rest of the circuit performs well so I will modify the circuit to use an external oscillator input.
Attached is the updated drawings for such a circuit.

Again, I'm very sorry to have made such a huge mistake and wasted time for everybody.
As I said, the circuit will still work with an external oscillator from a signal generator.

Groundloop.

No worries i have a suggestion is it possible to make only the h bridge PCB with the optocouplers  so it will be the update of your first Gotoluc design .
Hope that the other design will work with the pic .

Najman

Groundloop

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #317 on: January 04, 2009, 01:12:37 AM »
@najman100,

Yes. You can use the PCB you made as it is.

Don't solder the 4040 IC.
And don't solder the xtal and components around the xtal.
Then you solder a wire from pin 4 on the 4040 area to a external connector.
Also solder a ground wire (pin 8 at the 4040 area) to the connector.

Solder a wire between pin 1 and pin 16 on the 4009 IC.
Solder a wire from pin 11 to ground on the 4009 IC.

The circuit will then run with the same output frequency as you use on the signal generator.
Maximum input frequency is approx. 500kHz. (That is all the H11D1 can take.)

Groundloop.


najman100

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #318 on: January 04, 2009, 01:16:27 AM »
@najman100,

Yes. You can use the PCB you made as it is.

Don't solder the 4040 IC.
And don't solder the xtal and components around the xtal.
Then you solder a wire from pin 4 on the 4040 area to a external connector.
Also solder a ground wire (pin 8 at the 4040 area) to the connector.

Solder a wire between pin 1 and pin 16 on the 4009 IC.
Solder a wire from pin 11 to ground on the 4009 IC.

The circuit will then run with the same output frequency as you use on the signal generator.
Maximum input frequency is approx. 500kHz. (That is all the H11D1 can take.)

Groundloop.



Thanks for the detailed instruction .
i was asking ,if you can to redo the mods for a new pcb so if anyone would like to replicate it.
Thank you

Najman

Groundloop

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #319 on: January 04, 2009, 01:27:36 AM »
@najman100,

Yes I will do that tomorrow. It is in the middle of the night now and I have been working
on this switch all day long. I will post a updated Eagle drawing. I will also try to make
the PCB a single sided layout.

Groundloop.

najman100

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #320 on: January 04, 2009, 01:32:15 AM »
@najman100,

Yes I will do that tomorrow. It is in the middle of the night now and I have been working
on this switch all day long. I will post a updated Eagle drawing. I will also try to make
the PCB a single sided layout.

Groundloop.

That would be great Thanks for all the help ,and good night .
Najman

Cap-Z-ro

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #321 on: January 04, 2009, 03:08:19 AM »

" Yep...you shouda took the easy out at 1st. Smiley



Hi Cap-Z-ro,

I don't understand your comment Huh... could you explain a little more of who or what you are referring too?

Thanks

Luc "


Sorry Luc...just another attempt at humor gone awry.

It was baseball based joke/quip in reference to your "error".

If only I would have said 1st [base] the joke may have went over.

Proving once again that comedy is dangerous business. :)

Regards...


minde4000

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #322 on: January 04, 2009, 03:28:18 AM »
Dam this all deal is all amazing. Something bigger would be great. GJ gotoluc closedloop

armagdn03

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #323 on: January 04, 2009, 05:07:22 AM »
Here is a great article which shows a good model on which to base helical resonators. This is important in understanding 1/4   1/2   full wave, etc resonators.

http://www.ttr.com/corum/index.htm


BEP

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #324 on: January 04, 2009, 06:03:10 AM »
Here is a great article which shows a good model on which to base helical resonators. This is important in understanding 1/4   1/2   full wave, etc resonators.

http://www.ttr.com/corum/index.htm



Very good link! Slow wave transmission line resonators - source signals faster than the resulting signals - wave guide like action in a coil. I remember posting such info over a year ago and being slammed for it. Need to make your coil resonate at a unusually low frequency? This link explains it nicely.

Nice to see others understand this.

shinz62

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #325 on: January 04, 2009, 09:29:44 AM »
@everyone,

I just uploaded a new video "test 10"

Link: http://www.youtube.com/watch?v=auFYEFBrwls

Luc


Hi gotoluc,

Interesting video thanks for sharing.  I think I can explain why you still get power through when you connect the opposite lead of your bi-filer coil. It is because you're getting your coil to act like a capacitor and a coil at the same time. I doubt that too many other folks have come across this in quite the way you have here because of your lamp cord coil, you have a very uniform distance between each wire of the bi-filer creating a nice capacitor in addition to a coil. Before you recoil your coil I think it would be interesting to try some different capacitors with your setup to see if you can find some higher frequency resonance spots. Maybe even no capacitor, using only the capacitance in your coil. It seems like higher frequency gets more output.

When you do decide to recoil the coil, I think you should focus on ways of winding it to maximize the capacitance. That is on thing Tesla was trying to do with his unique windings. It is one key to reducing resistance in the coil. To maximize the capacitance you want the highest voltage wire to be near the lowest voltage wire of the coil, creating the largest difference in voltage though out the coil for neighboring wire. So, considering that the voltage is spread out uniformly from the beginning to the end of the coil, you can imagine some winding possibilities to maximize the voltage difference against all neighbors though out the wind.

Thanks,

Shinz.

Groundloop

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #326 on: January 04, 2009, 11:24:53 AM »
@najman100,

Attached is the new PCB layout you asked for. I have made the PCB so that it can be produced
in three different ways. First as a normal double sided plated through holes PCB. This version needs
no soldering of jumpers or through holes. The next version is a double sided not plated through holes
version. This PCB needs soldering through holes in all the jumper connections, but no jumper wires.
The last version is a single sided (under side only) version. This version needs a jumper wire at each
jumper location shown in the design.

(Edit) I forgot to ground one unused port in the IC.
Have done that now, please download this new version.

Groundloop.
« Last Edit: January 04, 2009, 03:19:31 PM by Groundloop »

sparks

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #327 on: January 04, 2009, 04:18:50 PM »
@BEP

         I am probably trying to oversimplify but wasnt Tesla saying that there is a current between nodes and antinodes of a wave that is independent of the input current?  These currents then induce voltage which then again terminates at the nodes and a standing wave is produced in the secondary. 

mod.   This standing wave is usually avoided in radio transmission as the oscillator becomes part of it and the voltage rises beyond what the osc can withstand and pop goes the base station.  I would imagine a Tesla coil would max out a swr meter to the point that the needle would snap right off.  This is avoided by the loose inductive coupling to the transformer secondary by the primary.

mod again: (coffee kicking in)   If there is a way to now manipulate this standing wave to expand and contract along the length of the secondary could a vlf wave then be imposed between a top load and Earth?
« Last Edit: January 04, 2009, 04:45:26 PM by sparks »

najman100

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #328 on: January 04, 2009, 05:03:57 PM »
@Groundloop

Thanks groundloop i will try too make the pcb now the holiday are finished i will try to squeeze some time .

Najman

wattsup

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Re: RESONANCE EFFECTS FOR EVERYONE TO SHARE
« Reply #329 on: January 04, 2009, 05:44:28 PM »
@najman100

Not so fast, please. Just wait until the circuit is given a true green light.

@groundloop

Thanks for the real circuit photo. Now I know exactly what it should look like as I was having trouble figuring which components like caps and resistors to order.

Now you know why I said take a few steps back and re-check. No matter. Guys should keep a cool head and not jump too fast. We should check and re-check this new circuit before any other attempt is made.

Like, on the new circuit, on the 4009N pin 15 is also not used but not indicated in the diagram. I am also happy to see the external jumpers are physically located on the outer perimeter of the circuit board. On the previous board the output terminal was very close to some resistors and a potential for shorting.

Also, I see you are again using the same four npns - MJH11022. I looked at the pdf and there is a model MJH11021 that is a pnp and am wondering if it is not better to use two of each instead, given that the body of the transistor is also the collector. So the heat sinks should not touch each other or they may short.

- OVERUNITY.COM CIRCUIT STORE -

Just in case, if anyone can make the circuit (when it is ready) and sell it to me, this would save me a whole s*&t load of (time x 10) given my obvious lack of experience in building circuits and I don't mind paying for the parts and the time and whatever else is required. I just sort of fell flat when I started looking to order the parts, mainly the resistors and capacitors. There are so many types that I was just lost. Hmmmmm.

Seriously, there must be enough circuits on the forum that if a guy was really into it, he could review the many circuits and put a price on them for sale. I know some here will buy like me and I am sure there are many that come to the forum just to read and would still like to order some circuits. This would give me more time to work on coils and experiments and not risk blowing a circuit while trying to build it. If anyone or two guys were serious about it and had some spare time, I am sure Stefan would not mind giving you access to a special locked thread with permission to update available circuits and guys could place orders and pay via PayPal. Man that would be a dream come true. Our own dedicated circuit board shop would increase our potential experimentation time and I am sure it would be profitable for the guys doing it.

@armagdn03

Thanks for the link. As usual when they start talking with formulas, I will get lost but there is enough information there for me to understand at least the basics. Thanks.

@gotoluc

Great videos. Thanks. I have been doing some other resonance tests using the @armagdn03 basic but putting the FG first through different coil types, then to the LC circuit and am seeing some very interesting things.