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#1
04-12-2012, 12:18 AM
 voire Junior Member Join Date: Jan 2011 Posts: 20
Schumann 555 Timer

Hi, does anyone have a circuit which will act like a frequency or signal generator and will create an output 0f 7.8 hetrz? I assume this could be done using the 555 timer. I basically want a little fixed frequency generator to output a trigger signal at the Schumann frequency, which I could then feed through a transistor to pulse larger things at the Schumann Frequency. Thanks!
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#2
04-12-2012, 12:28 AM
 kcarring Silver Member Join Date: Dec 2010 Posts: 610
555 astable multivibrator

555 Timer Astable Multivibrator Circuit; Pulse Generator Circuit

Quote:
 This circuit diagram shows how a 555 timer IC is configured to function as an astable multivibrator. An astable multivibrator is a timing circuit whose 'low' and 'high' states are both unstable. As such, the output of an astable multivibrator toggles between 'low' and 'high' continuously, in effect generating a train of pulses. This circuit is therefore also known as a 'pulse generator' circuit. In this circuit, capacitor C1 charges through R1 and R2, eventually building up enough voltage to trigger an internal comparator to toggle the output flip-flop. Once toggled, the flip-flop discharges C1 through R2 into pin 7, which is the discharge pin. When C1's voltage becomes low enough, another internal comparator is triggered to toggle the output flip-flop. This once again allows C1 to charge up through R1 and R2 and the cycle starts all over again. C1's charge-up time t1 is given by: t1 = 0.693(R1+R2)C1. C1's discharge time t2 is given by: t2 = 0.693(R2)C1. Thus, the total period of one cycle is t1+t2 = 0.693 C1(R1+2R2). The frequency f of the output wave is the reciprocal of this period, and is therefore given by: f = 1.44/(C1(R1+2R2)), wherein f is in Hz if R1 and R2 are in megaohms and C1 is in microfarads.
555 Timer Astable Multivibrator Circuit; Pulse Generator Circuit
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#3
04-12-2012, 02:00 AM
 stargate22 Member Join Date: Aug 2009 Posts: 38

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#4
04-12-2012, 03:32 AM
 Slider2732 Gold Member Join Date: Mar 2011 Location: Muskogee, Oklahoma, USA Posts: 1,006
That was a really good link Stargate

Voire - If you change Rb to 90, you get 7.8000078000Hz
It's on the left side, middle parameter.
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#5
04-12-2012, 02:14 PM
 voire Junior Member Join Date: Jan 2011 Posts: 20
Thanks for the info guys!
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#6
04-13-2012, 02:39 AM
 Bob Smith Silver Member Join Date: Sep 2007 Posts: 785
I can think of a couple of practical applications for using the 555 to produce schumann resonance.
1. To use in signal generator as a defense against EMR from data transmission and cell towers, SMART meters, cell phones etc. For example, there is a story about American embassy personnell in Moscow some years ago carrying schumann resonance signal generators in their breast pockets to surround themselves with a field to counteract microwaves supposedly being beamed at them (and allegedly causing cancer, according to the story I read).
2. As part of an apparatus to promote healing. It seems that a circuit producing a schumann res is part of the TensCam device - very interesting, and reportedly effective in healing injuries that cannot be healed with other methods. | Tenscam

I would really like to find a way to build a schumann res signal generator that could be carried around for EMF protection.
Bob
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#7
04-13-2012, 02:55 AM
 Neight Senior Member Join Date: Apr 2011 Posts: 322
Have any of you ran into the idea that the earths frequency is getting higher?
I have heard this from a few different sources, and find it quite interesting.
One source I ran into speculated that the frequency is going to go at least as high as 10-11Hz, though I don't know why that number is given, or how they came to that conclusion. It's hard to imagine that the earth changing frequencies wouldn't be bigger news, but who knows anymore
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#8
04-13-2012, 03:51 AM
 Slider2732 Gold Member Join Date: Mar 2011 Location: Muskogee, Oklahoma, USA Posts: 1,006
@Neight...well, we could always fit a variable pot to Rb LOL
But, I have a feeling it's a lot more serious than a change to a 555 circuit

What needs to happen, is for us to build these 555 based Schumann doodahs and then combine them with something known to be only majorly affected at that frequency (the Marcos Dancing Magnets on YouTube springs to mind for the picture of what I mean). Then, sit around and see if the reaction falls off and returns with a retune.
That way, you could use the calculator posted by Stargate, or preferably a frequency function on a multimeter and actually know if the Earth's frequency was indeed changing.
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#9
04-13-2012, 05:07 PM
 Allen Burgess Gold Member Join Date: Sep 2011 Posts: 1,661
Pwm

Buy and build the Velaman Pulse Width Modulator 3 trim pots. R-3 controls the pulse width and R-2 the voltage.
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#10
04-14-2012, 04:27 AM
 Slider2732 Gold Member Join Date: Mar 2011 Location: Muskogee, Oklahoma, USA Posts: 1,006
I've just finished building the circuit that stargate22 linked to.
It's to the same layout, same component values etc.
Thinking of Neight's wonderings though, I incorporated a 100K pot instead of Rb. A 22K resistor is in series with the pot. This enables frequencies from around 6Hz to 30Hz. Didn't have a lower value pot, hence the top end of the range being higher than wished.
On the lowest settings of the pot, the LED's can be readily seen to alternate as they do on the webpage.
Features, include details on the right of the circuit. At the top is an on/off switch. Next below is the power input. Next is a 2 pin header to either allow or disallow the LED's (giving more current to the Pin 3 output that goes external) and finally at the bottom is the external 2 pin port for Pin 3 and Ground.
Looking forward to triggering transistors and coils with this

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#11
02-07-2013, 10:13 PM
 jamiewalder75 Junior Member Join Date: Feb 2013 Posts: 1
function gen

hi slider2732,

was quite some time ago since your last post, im interested in building a resonator. i have only just found this site tho so have slightly gone a different way with regards to the 555, i have used a xr2206 function generator to generate a 7.83hz sine, could use a square but unsure which would be best so stuck with sine although square seems to have a greater affect on emf, must be the switching effect of the square wave. anyway how have you done, have you been able to resonate. i have been trying for weeks with no luck. so far i have a xr2206 hooked up to a 10w signal amp and a 75 ohm coil hooked right from the output. i have read that you need to match the coil impeadence with the output impeadence of what ever you are going to use to drive the coil. im now stuck, can anyone tell me how to work this out, i consider myself still quite a novis
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#12
02-07-2013, 11:41 PM
 Slider2732 Gold Member Join Date: Mar 2011 Location: Muskogee, Oklahoma, USA Posts: 1,006
Hi Jamie...

As luck would have it, i'm restarting on such things. Found that a 10uF cap in series on the output will decouple the 7.8Hz from the driven load. That was something, i'd start the oscillator, run another with it at a different frequency and this one would pack up and latch ! The decoupling sorted that out.
That effect is also seen if you try to run an audio speaker with the output.
You may have similar experiences with the XR2206...have never used one.

Different wave shapes are a consideration. The Earth is, presumably knocking out a sine wave. Perhaps then the 7.8Hz oscillator should. Fast sharp impulses are there with a square wave, so the secondary (carrier) frequency would then be a square wave.
The sharpness would be in the duty cycle, a quick blip effect, either through duty cycle or with a very tiny contact from a motor armature.
Or, in fact, we tune something to a multiplied wave derivative, 31.2Hz perhaps. 1/4 wave radio is the thinking there. With 31.2Hz being faster than our eyes see as blinks, then it seems ideal for an end output LED rate.

What kind of coil are you using ? Straight wound on a magnetic core for that 75ohms ?
I would advise a Tesla bi-filar pancake for resonance properties, only through experience though...your mileage may well indeed vary
But, the thinking there is that the natural frequency of a pancake decreases with size and they display a far greater capacitance than other coils. They are air core, preventing losses of any core and receive/transmit ambient energies excellently.
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#13
02-08-2013, 12:30 AM
 Bob Smith Silver Member Join Date: Sep 2007 Posts: 785
Found 2 Versions

Hi Everyone
I've been hunting a Schumann res generator for some time. A little while ago, I finally began to find things.

First, here is a new YT vid showing a schumann res freq genny using a 555 timer chip:
He says you can buy them online from overseas, but I had no luck finding anything other than the expensive pre-made ones put out by health-based businesses.

I found a schematic using a 555 timer switch at this link, but now it doesn't come up. Maybe the site's down. Here's the link:
It's a good schematic and has the layout for a board as well that you could send to a manufacturer to have printed up. Hopefully it'll come back up.

I also found a schematic for a Schumann res generator that produces a sine wave and uses a series wound bifilar coil to produce scalar waves. Very interesting -
Schumann Frequency Oscillator with Scalar Coil

There are some good online 555 calculators to get your resistors and caps to the right values to hit the proper 7.83 frequency (or very close to it). Here's one, for example:
555 Calculator

Here are some values that'll get you very close to the 7.83 frequency with the 555:
R1 -- 1.82K
R2 -- 1.83K
Ct -- 50uF
Vcc -- 6V
F=7.8277Hz

R1 -- 1K
R2 -- 91K
C -- 1uF
F= 7.8688 Hz

There are some other value variables but I can't find them right now. I think you'll need to use some variable pots to get the frequency bang on. I believe this is what was done in the YT video above.

This is probably one of the best 555 tutorials around - maybe too much info for some, but very helpful for understanding the 555:
555 Timer/Oscillator Tutorial

If you're looking for step-by-step walk thru with photos for building a frequency genny using a 555 timer switch, here's a helpful link:
How to make a Frequency Generator:

I hope this is of help.
Bob

Slider, I guess I missed your post. Thanks very much for this helpful info. I'll keep it in mind when I build (next after current project). - B
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Last edited by Bob Smith; 02-08-2013 at 12:36 AM. Reason: New Info
#14
02-08-2013, 06:40 AM
 Slider2732 Gold Member Join Date: Mar 2011 Location: Muskogee, Oklahoma, USA Posts: 1,006
Thanks for all the info Bob

I was intrigued by the sine wave type setup, not only for the coil, but also about the LT1037.
Here's some info: LT1037 - Low Noise, High Speed Precision Operational Amplifiers - Linear Technology
It's not just an op-amp... 20 million voltage gain and the lowest noise performance of anything (less than the noise of a 400ohm resistor) !
Looks like he used it for the quiet up to 10Hz, which they actually graph, rather handily.

Think i'll build me a self cancelling pancake coil and see how it goes
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#15
02-08-2013, 05:59 PM
 blackchisel97 Gold Member Join Date: Jun 2009 Location: NB, Canada Posts: 1,701
Quote:
 Originally Posted by Bob Smith Hi Everyone I've been hunting a Schumann res generator for some time. A little while ago, I finally began to find things. First, here is a new YT vid showing a schumann res freq genny using a 555 timer chip: schumann wave resonator circuit, homemade style. - YouTube He says you can buy them online from overseas, but I had no luck finding anything other than the expensive pre-made ones put out by health-based businesses.
Hi Bob.
Yes, they have them on eBay. I got couple at \$4 each and they work fine - 555 generator | eBay. I would replace regular cap with tantalum type.
I didn't try LT1037 yet but it looks good. Thanks for the link Slider

Vtech
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#16
02-08-2013, 06:32 PM
 ZeroMassInertia Member Join Date: Dec 2008 Location: Burgettstown Pa. Posts: 55
Gentleman if the Earth is producing a resonance of 7.8 HZ how can we synchronize our generator to pulse in rhythm with the natural schumann wave?
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#17
02-08-2013, 09:21 PM
 Bob Smith Silver Member Join Date: Sep 2007 Posts: 785
Thanks very much, chisel!
Bob
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#18
02-08-2013, 09:28 PM
 Bob Smith Silver Member Join Date: Sep 2007 Posts: 785
Quote:
 Originally Posted by ZeroMassInertia Gentleman if the Earth is producing a resonance of 7.8 HZ how can we synchronize our generator to pulse in rhythm with the natural schumann wave?
Zero, I'm not sure I understand your question. At face value, I think it's just a question of adjusting the capacitor/resistor values on an astable 555 setup until it reaches the 7.83 Hz frequency. However, I suppose this could still be out of phase with the earth's pulse. Are you asking how do we align the phasing of the generator's pulses with the phasing of the earth's pulse?

Bob

Edit: Re-read the question for the third time. I guess this is what you're asking - my own brain fog after a day's work... sorry. Good question. I don't really know. B
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Last edited by Bob Smith; 02-08-2013 at 09:34 PM. Reason: Brain de-fogging
#19
02-08-2013, 10:33 PM
 ZeroMassInertia Member Join Date: Dec 2008 Location: Burgettstown Pa. Posts: 55
Quote:
 Originally Posted by Bob Smith Zero, I'm not sure I understand your question. At face value, I think it's just a question of adjusting the capacitor/resistor values on an astable 555 setup until it reaches the 7.83 Hz frequency. However, I suppose this could still be out of phase with the earth's pulse. Are you asking how do we align the phasing of the generator's pulses with the phasing of the earth's pulse? Bob Edit: Re-read the question for the third time. I guess this is what you're asking - my own brain fog after a day's work... sorry. Good question. I don't really know. B
My question was about trying to synchronize our generators with the natural schumann wave . Our bodies may find that two 7.8 HZ signals out of phase confusing. Our generators would have to be triggered from the Schumann wave and have to match any frequency variations . It would be similar to a grid tie inverter matching the line frequency.
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#20
02-09-2013, 05:29 AM
 blackchisel97 Gold Member Join Date: Jun 2009 Location: NB, Canada Posts: 1,701
Quote:
 Originally Posted by Bob Smith Thanks very much, chisel! Bob
You're welcome Bob.
I'm working right now on another project from series of healing devices. This one will pulse 660nm LED array and 1W pointer with seven fundamental frequencies according to Dr Nogier research. I got 555 oscillator running all of them but I'm not happy with floating and drifting which is slightly more than 1pps. There is another inexpensive IC - ICL8038, more stable and providing sine, square and triangle wave via separate outputs. I even found assembled pcb - 10Hz-300KHz PWM Signal Generator Square, Triangle Wave Board | eBay
I'm going to give a try and was thinking that you could use it for your project as well. It is impossible to keep 555 accurate to two decimals, even with tantalum capacitor. I love 555 and have been using them since they became available but there are limits of what they can do. Same with vintage 741.

Vtech
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#21
02-09-2013, 06:04 PM
 Bob Smith Silver Member Join Date: Sep 2007 Posts: 785
Quote:
 I even found assembled pcb - 10Hz-300KHz PWM Signal Generator Square, Triangle Wave Board | eBay I'm going to give a try and was thinking that you could use it for your project as well. It is impossible to keep 555 accurate to two decimals, even with tantalum capacitor. I love 555 and have been using them since they became available but there are limits of what they can do. Same with vintage 741.
Vtech,
The signal gen from ebay only goes as low as 10 Hz. Is this just perhaps a ballpark figure, and are you thinking it might go down to 7.83?
Bob
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#22
02-09-2013, 07:13 PM
 blackchisel97 Gold Member Join Date: Jun 2009 Location: NB, Canada Posts: 1,701
Quote:
 Originally Posted by Bob Smith Vtech, The signal gen from ebay only goes as low as 10 Hz. Is this just perhaps a ballpark figure, and are you thinking it might go down to 7.83? Bob
ICL 8038 will operate between 0.001Hz to 300kHz. It should be just a matter of replacing one component. This IC used to be made by Intersil from early '70 (another vintage one). I need to operate at 73Hz being the lowest. Most if not all suppliers from Asia celebrate their Spring Festival and Chinese New Year and shipping will be delayed until at least 16th Feb. I'm planning to get one and try it. You can also get just IC and make the rest. Circuit isn't complicated.
Another option is one of those DDS unit with LCD. I got one and it works very well. You need to search since its price can vary from \$36 to over \$60 (shipping included). This device works as sine/trian/square generator up to 5-10MHz and can be adjusted down to third decimal. It can store your settings in memory and it also works as frequency counter or meter for external source. Duty cycle and signal amplitude are also adjustable.
Mine came with 5V adapter. I figured \$40 isn't bad for signal generator/frequency meter combo. Well worth it imo.

Vtech
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Last edited by blackchisel97; 02-09-2013 at 07:18 PM. Reason: add
#23
02-10-2013, 02:16 PM
 Bob Smith Silver Member Join Date: Sep 2007 Posts: 785
Thanks V.
Maybe once I'll be looking into this more once I've finished with my current project.
Bob
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#24
02-10-2013, 06:56 PM
 MasterBlaster Senior Member Join Date: Jul 2012 Posts: 116
Quote:
 Originally Posted by ZeroMassInertia Gentleman if the Earth is producing a resonance of 7.8 HZ how can we synchronize our generator to pulse in rhythm with the natural schumann wave?

I thought about the same question but convinced myself that "sympathetic resonance would bring the oscillations in phase but there is another issue:

Look at figure 3:

earth's rhythms, Schumann resonances, magnetic field sensor, Global Coherence Monitoring System
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#25
02-10-2013, 06:59 PM
 citfta Gold Member Join Date: Jun 2008 Posts: 1,268
Thanks Vtech!!

Thanks Vtech,
I also found one on Ebay for \$39 and free shipping. This one is good for up to 5Mhz and also has a sweep function in addition to all the other functions you mentioned. Thanks again for a great tip.
Carroll
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#26
02-10-2013, 09:19 PM
 ZeroMassInertia Member Join Date: Dec 2008 Location: Burgettstown Pa. Posts: 55
Quote:
 Originally Posted by MasterBlaster I thought about the same question but convinced myself that "sympathetic resonance would bring the oscillations in phase but there is another issue: Look at figure 3: earth's rhythms, Schumann resonances, magnetic field sensor, Global Coherence Monitoring System
Thanks for the great link Master Blaster.
Maybe our efforts would be better directed at making a Schumann wave detector and amplifier.
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#27
02-11-2013, 02:48 AM
 blackchisel97 Gold Member Join Date: Jun 2009 Location: NB, Canada Posts: 1,701
Quote:
 Originally Posted by citfta Thanks Vtech, I also found one on Ebay for \$39 and free shipping. This one is good for up to 5Mhz and also has a sweep function in addition to all the other functions you mentioned. Thanks again for a great tip. Carroll
My pleasure Carroll. Mine has sweep function as well. I have bench type Dynascan sweep FG but this little one goes up higher. Very neat.

Vtech
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#28
02-11-2013, 12:03 PM
 MasterBlaster Senior Member Join Date: Jul 2012 Posts: 116
Quote:
 Originally Posted by ZeroMassInertia Thanks for the great link Master Blaster. Maybe our efforts would be better directed at making a Schumann wave detector and amplifier.
I have not tried this but may be a start:

www.vlf.it - ELF Minimal Loop
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#29
02-14-2013, 07:01 PM
 Slider2732 Gold Member Join Date: Mar 2011 Location: Muskogee, Oklahoma, USA Posts: 1,006
Interesting read MasterBlaster. What we need is a 0.5V op-amp

Throwing 12V through a regular op-amp is all fine and dandy, but we'd have to hetrodyne a heck of a lot to get back the 12V, plus the current used.
Perhaps it's an idea to try out the op-amp circuit, tune the coil, then move into low energy ramping of that detected resonance.
Any real resonance is the same as a signal generator through a coil and, a signal generator through a coil will realise it's natural frequency. At that frequency, with say a pancake coil, you will get wireless energy efects.
Everything is highly specific, benefitting from small value pF range caps across the coil. With pancake coils of a few mm being resonant around 2MHz, pancakes of 1/2meter being down around 200kHz.
A really huge pancake would resonate, then, at a presumed 7.8Hz.
But it's not the way to do it...the guy in the article described the cost problems of such a sizing.

What needs to happen, in my opinion, is that the Schumann runs as an oscillator source, to switch and feed back collected energies. That feed back would be wireless, keeping the loop open. Using a zener diode, it would output to a dump capacitor. That must be allowed to fill to a level where there is an excess for the load to be driven. Maybe a huge 1F supercap just to run one LED, but you get the idea
Or, a radiant energy collector will deliver 0.6V @ 10uA (built one myself on the backyard fence). That output can run an efficient blocking oscillator, to compliment the Schumann collector. Both frequencies should be 7.8Hz.
The radiant collector coil and Schumann coil should be of matching wavelength. We may then get a 'super' resonance similar to the Marcos Dancing Magnets
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#30
03-05-2013, 05:44 AM
 blackchisel97 Gold Member Join Date: Jun 2009 Location: NB, Canada Posts: 1,701
Just another hint for those looking for simple and reliable oscillator. I recently made couple on 4047 and I'm very pleased with their stability. This chip will run from 3V up to 15V, draws very little and the beauty of it is maintaining 50% duty cycle all the way. I think it can run as high as 100kHz. Tuning can be done with both, a cap and pot but I was able to cover from 73Hz up to 4,872kHz using same 10nF and only changing resistors. Just an advice; since increasing resistance will result in lower output frequency I found convenient to get close to desired frequency (on lower side) and use small, value resistors or 100Ohm trimpot to get precise tuning done. I posted schematics in Energy Science Forum>Electronic Healing Devices>Red Light Therapy so you can get an idea how to modify to suit your needs.

Thanks
Vtech
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http://www.nvtronics.org

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