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Author Topic: Magnetic Resonance Devices based on Don Smith Concepts  (Read 453333 times)

xee2

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #240 on: September 12, 2009, 06:56:11 PM »
@ stprue

I have been getting better results with this.

What value are your capacitors. They look like 30 pF. Are you adding the extra capacitors in series or parallel. I would not think adding is series would help. But adding in parallel will increase the energy stored before the spark fires. This would increase the current and energy in the spark and thus also the energy in the hairpin loop.


I started to do this some time ago but could not find a good spark gap. I am now working on a different project. You have created a simple cheap way of doing Tesla experiments and I am curious to see what kind of results you can get.

I will update the drawing when I find out if they are series or parallel.


stprue

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #241 on: September 12, 2009, 09:54:58 PM »
@ stprue

What value are your capacitors. They look like 30 pF. Are you adding the extra capacitors in series or parallel. I would not think adding is series would help. But adding in parallel will increase the energy stored before the spark fires. This would increase the current and energy in the spark and thus also the energy in the hairpin loop.


I started to do this some time ago but could not find a good spark gap. I am now working on a different project. You have created a simple cheap way of doing Tesla experiments and I am curious to see what kind of results you can get.

I will update the drawing when I find out if they are series or parallel.

The cap after the bridge is in parallel and the 4 caps coming from the spark gap are in series 2 each side.

xee2

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #242 on: September 12, 2009, 10:28:27 PM »
@ stprue

The cap after the bridge is in parallel and the 4 caps coming from the spark gap are in series 2 each side.

I do not think that having more than one cap is any different than just using a different value capacitor.


stprue

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #243 on: September 12, 2009, 10:48:35 PM »
That looks good xee..I agree about the caps but I don't have enough to always change up. Adding the same value caps together can help you diversify what you have.  I have found a way to double the pickup voltage...it's kinda funny it is starting to look more like a tpu!  I will post some pics after fine tuning it.

stprue

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #244 on: September 13, 2009, 03:55:21 PM »
@all

What do you think of Bruce's releases? 

Peterae

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #245 on: September 13, 2009, 05:37:30 PM »
Yes it's interesting, but i would imagine he's had this information for a while, so what were the results of someone that has already built it, or What happened when Bruce built it?
After all if it is indeed the solution he would have built it right?

stprue

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #246 on: September 13, 2009, 06:46:39 PM »
I agree, I have all the same questions.  I sent him a PM but he didn't respond...but on the other hand I'm sure a lot of people are sending PM's sense he has locked his topic.  He seems to be leading us down the right path but why now?  He should give us the results...which I'm sure are pretty good unless he is a fake.  His tube vids seem to show that he is on the right path!  I plan on reading the entire topic today to catch up and better understand what he has been doing.   

Peterae

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #247 on: September 13, 2009, 08:29:10 PM »
I have not read the whole thread, so i went to page one and read he does not have any electronics experience oops looks like that explains why he hasnt built it i guess.

stprue

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #248 on: September 13, 2009, 08:57:06 PM »
I just finished page 25 and I think that's good for today, but it's very interesting stuff.

P.S. Not enough pictures though!!!

Peterae

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #249 on: September 17, 2009, 01:14:12 PM »
My new LCR meter arrived today, very complex still trying to get to grips with it.

20 turn coils read as follows.

Coil A Tests at 10khz
R = 0.0471 Ohm
L = 16.07uH
Z = 1.0131 Ohm
Q = 21.454

Coil B Tests at 10Khz
R = 0.0472 Ohm
L = 16.19uH
Z = 1.0187 Ohm
Q = 21.550

So if i used his secondary cap value 0.047uF i would have a theoretical operational freq of 183kHz

Peter


Yucca

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #250 on: September 17, 2009, 04:17:01 PM »
My new LCR meter arrived today, very complex still trying to get to grips with it.

20 turn coils read as follows.

Coil A Tests at 10khz
R = 0.0471 Ohm
L = 16.07uH
Z = 1.0131 Ohm
Q = 21.454

Coil B Tests at 10Khz
R = 0.0472 Ohm
L = 16.19uH
Z = 1.0187 Ohm
Q = 21.550

So if i used his secondary cap value 0.047uF i would have a theoretical operational freq of 183kHz

Peter

Peter,

The meter sounds very nice, incredible accuracy on the figures!

I've been playing more with my quarter wave rig. I cant tune it dead on without a variable cap, I'm thinking of getting a normal air cap and keeping around 1kV.

I hacked together a second secondary: a hand bundled loop of 17AWG enameled copper, with a neon over it, I tuned the length so that resonance was pretty close to primary ringing and the neon is super bright, the first decondary does not seem to be reduced in output power at all, in fact the gapfire freq seems to speed up when the second coil is placed on top of the coils, but that might be because I'm pulling the tuning in a favourable direction?

This hacky coil is fairly flat, 8cm diam and less than 1cm high, I can use it like a sniffer coil and can visualise the field coming off the device.

On a side note:
I've been reading the revelations of bruce_tpu and in my excitement I've made two filter networks one for 115kHz and one for 222kHz, with these I can turn very stable IC generated square waves into near perfect sine.

stprue

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #251 on: September 17, 2009, 04:48:48 PM »
Yucca do you have any pictures of your 115 and 222 ic's?  I would love to see them.

Yucca

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #252 on: September 17, 2009, 05:00:11 PM »
Yucca do you have any pictures of your 115 and 222 ic's?  I would love to see them.

They are DS1085, I got them as free samples. They were a pain to solder to the DIL converters!

I have written C routines to program any frequency using SPI bus. It was not trivial because different combinations of 2 prescalers and counters can be used to achieve the target frequency, my algorithm finds the best solution. You can search the web for source code to program thes ICs and you won't find it.

A great oscillator, more info here:
http://www.maxim-ic.com/quick_view2.cfm/qv_pk/3491

Also included a pic of a square gen unit I made using one, one channel is DC to 1MHz with PWM derived from the micro, the other channel is 10kHz to 20MHz square from a DS1085, My FET drivers limited me to 20MHz.

stprue

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #253 on: September 17, 2009, 05:26:35 PM »
WOW Yucca

You have skills.  I though you were going to show me a 555 rig that was tuned to frequency with a multi turn trimmer POT.  Humm now I wondering if I can get those precise frequencies out of 555/POT

Yucca

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Re: Magnetic Resonance Devices based on Don Smith Concepts
« Reply #254 on: September 17, 2009, 05:46:51 PM »
WOW Yucca

You have skills.  I though you were going to show me a 555 rig that was tuned to frequency with a multi turn trimmer POT.  Humm now I wondering if I can get those precise frequencies out of 555/POT

Thanks Sptrue, the chips are good but by no means stable compared to proper DDS chips.

If you want a rock solid REALLY pure sine source then you should get one or two of these nice kits, I'll probably end up buying one of these, just hope I can solder the SOIC chip on though!

http://www.pongrance.com/

Yucca.