PopularFX
Home Help Search Login Register
Welcome,Guest. Please login or register.
2024-11-26, 11:54:39
News: Check out the Benches; a place for people to moderate their own thread and document their builds and data.
If you would like your own Bench, please PM an Admin.
Most Benches are visible only to members.

Pages: 1 2 3 4 [5] 6 7
Author Topic: Don Smith's Briefcase Device  (Read 173896 times)

Group: Administrator
Hero Member
*****

Posts: 3960


Buy me some coffee
Relating to energy transfer in Don's primary

Quote
Doubling Lp and halving Cp in a given system, would leave the resonant frequency unchanged, but would double the surge impedance of the primary system. The result is a 50% reduction is the primary current which flows through the spark gap. Since the gap represents a constant voltage drop, this implies a 50% reduction in power dissipation in the spark gap.
   
Group: Guest

Peterae, where is that quote from? Its interesting..

Doubeling the inductance of the primary Lp will also increase the self capacitance of Lp which will further decrease the required primary capacitance Cp.

The larger the primary capacitor Cp the greater the magnetic force in the primary impulse.
The longer the wire in the Lp the longer it takes to convert the current surge to a magnetic field.
This is one of the reasons Tesla used a low number of high resistance turns in his primarys ( some were even lead strap )

   

Group: Tinkerer
Hero Member
*****

Posts: 3948
tExB=qr
doesn't high resistance keeps more of the energy in the field and out of the wire longer?
   
Group: Guest

I think it depends on the over all reactance.

Some people think DS was somehow canceling the reactance in the tank with a precision resistor.. How this works i dont know.

   

Group: Tinkerer
Hero Member
*****

Posts: 3948
tExB=qr
I think it depends on the over all reactance.

Some people think DS was somehow canceling the reactance in the tank with a precision resistor.. How this works i dont know.

The greatest mistake that many make is to look at these circuits as only electromagnetic circuits, and totally ignore their longitudinal aspects and all that occurs before the electrons start to flow.

When you first complete the circuit (during the rise of the impulse) the universe around the coil goes through "adjustments" (some say the entire universe reacts, but I find that hard to believe) because you changed everything with your impulse.

There is already a sense of order to this local universe because fo the presence of the conductors, insulators and everything else. So, everything is already connected in some way.

Any change in mass or energy produces some form of radiation as the universe responds to the change.  In our case, this "radiation" is RE.  Do a little reading and you will find that changes in mass/energy are propagated longitudinally.

It is the excited coil that produces the RE effect.  More mass = greater effect.  If you try to excite the coil open-ended (not term in a cap or grounded) you can not polarize the conductor correctly to get the sudden change in mass/energy.  I don't think you can excite the vacuum into producing it or a dielectric.

There are three schools of thought currently debated in the public sector regarding how this works:
From: "The Connection Between Inertial Forces and the Vector Potential"
By:      Alexandre A. Martins1 and Mario J. Pinheiro2

Quote
INTRODUCTION
There have been numerous attempts to explain the origin of the inertia property of matter suggested qualitatively by
Galileo in his writings and later quantified by Newton (Jammer, 1961), although its conceptualization still remains
as an unclear resistance of mass to changes of its state of motion. Since the works of Kirchhoff, Mach, Hertz,
Clifford and Poincaré a set of logical objections were raised against Newton's laws mainly based on the significance
of mass and force (Eisenbud, 1958). Driven by a strong need to develop advanced space propulsion physics there are
studies that try to link inertia with gravitational interactions with the rest of the universe (Mach, 1989; Bridgman,
1961; Sciama, 1953), while others hypothesize that inertial forces result from an interaction of matter with
electromagnetic fluctuations of the zero point field
(Sakharov, 1968; Puthoff, 1989; Haisch and Rueda, 1998) and,
finally, others that attribute inertia as the result of the particle interaction with its own field (Lorentz, 1992;
Abraham, 1902; Richardson, 1916; see also Ray (2004) for a general survey).

Now you can kind of see how mechanical vibration might also cause some interesting effects: Keely, Leedskalnin, Tesla's Mechanical Oscillator, etc.
   

Group: Tinkerer
Hero Member
*****

Posts: 3948
tExB=qr
What is the permittivity and permeability of vacuum during the impulse rise?  I've always wanted to know.

Sudden changes in these properties produce interesting responses.
   
Group: Guest
What is the permittivity and permeability of vacuum during the impulse rise?  I've always wanted to know.

Sudden changes in these properties produce interesting responses.

Low concentrations of gas in a near vacuum can become great conductors if not super conductors.

I think a vacuum is an ideal enviroment for a resonant system! From what i know so far ;)

What kind of mechanical resistance to vibration does the air surrounding the coil create to a purely resonant system??

I often wondered if his coils were in a PCV vacuum chamber

Put a speaker in a pressure chamber and as the pressure increases so does the energy required to drive the speaker.


   

Group: Tinkerer
Hero Member
*****

Posts: 3948
tExB=qr
does a region of space, with permittivity greater than vacuum, behave like a dielectric separate from the surrounding space?

Same question for permeability, can you create a region of space that is a virtual magnet?
   
Group: Guest
hi
   

Group: Administrator
Hero Member
*****

Posts: 3960


Buy me some coffee
Something i just read in one of Tesla's Doc's which maybe relevant

Quote
when in a system of transmission of energy for any purpose through the natural media the transmitting and receiving conductors are connected to earth and to an insulated terminal, respectively, the lengths of these conductors should be one-quarter of the wave length of the disturbance propagated through them.


Peter
   
Group: Guest
Something i just read in one of Tesla's Doc's which maybe relevant
 

Peter

Peter,
just had dug up that patent again myself and it seems to be
key to Kapanadze´s and D. Smith´s Theories.
I personally trust Tesla many times more that Smith and Kapanadze vague descriptions.
Smith always talks about quarter length of the transformer coils in relation to each other, but
in regards to establish a dependency to the actual wavelength of the oscillation
it would be much more reasonable to consider the oscillation frequency in relation to the wire lengths
and that is what Tesla suggests.
   

Group: Administrator
Hero Member
*****

Posts: 3960


Buy me some coffee
Hey Xeno
Great to see you over here, yes that's a very interesting patent indeed, It was the first time i had read it and probably should read it a number of time's, i was amazed to here he was playing with cryogenics to increase the efficiency of his coil's, i don't know if it was just that i don't fully understand it yet but it all read like he was describing an over unity device, with pancake coils the way to go.

Quote
Coils in the form of a flat spiral, such as those described, are eminently suited for the production of free oscillations; but obviously conductors or circuits of any other form may be used, if desired.

http://www.tfcbooks.com/patents/0685012.htm

Peter

   
Group: Guest


i just got my hands on a pre gfi electronic nst.

if it is not potted i will take it apart and see what the output looks like on the hv scope

   
Group: Guest

This is based on some tests I am currently doing

THIS REEKS OF TPU

The pulse from the source through the spark gap must be dc

It must be quenched near the first notch to establish the standing wave

When pulsed, the direction of current flow in the primary will determine the location of the node and antinode of the standing wave in the secondary coil

This can be visualized as one end of the coil is at pressure and one end is at vacuume

If no direct ground connection is used, for the energy gain to manifest, the node must be facing the sky plane and the antinode must be facing the ground plane

With a standing wave established in a coil in this manner, turning the coil upside down will cancel the energy gain


   

Full Member
***

Posts: 209
I remember GK saying that one of SM's TPU's looked to have a stungun citcuit in it. 

Interesting!
   
Group: Guest
@vunduo

 This diagram is great but one big problem here - none of us could find a center tapped solid state nst.

It might be possible that center tapped earth grounded nst might put out bigger bang for a buck than the one ain't but where to get them? .. Bertonee obviously used to sell them but they aint around any more.
I also scoped my nst few days ago with hv probes... what a mess.. also 60hz mains freq distortions look very ugly.. creating like a huge "motherwave" on wich working 22khz in my case frequency waves ride on. The end result should work anyway would be a voltage swing but whatever.

If anyone know solid state HF center tapped nst please post.

Minde
   
Group: Guest
The only center tap e-nst i have tested so far was a non-potted version that had been converted to center tap.

there is a little 555 circuit that looks for load imbalance and it is tied to a center tap within the case.
if you remove this safety circuit you then can put a screw stud through the side of the plastic case and connect it to center tap of the coil.

This may be what don did

no matter how you scope it the output is too nasty to drive a resonant system

from my experience connecting the primary to ground will not give you any extra power because it is a driven system
   
Group: Guest


Quote
If we place a quantity of electrical energy into the coil and do it quickly enough, the coil will ring at its natural resonant frequency, much like a bell. Voltage nodes and peaks will appear along the coil. If the coil is floating in free space, it will tend to oscillate at its natural 1/2-wavelength resonant frequency, and each end of the coil will exhibit a voltage peak while a voltage nodal point will exist in the exact center of the coil. If, however, we ground the base of the coil, this is a forced nodal point and the coil will oscillate at its natural 1/4-wave resonant frequency. The results will be enhanced if the energy is pulsed into the coil at its exact resonant frequency. The effect is called resonant rise, and the coil a helical resonator. A standing wave appears on the classic 1/4-wave resonator which has a current peak at its base or ground point and a current node at the top of the coil. Likewise, there exists a voltage nodal point at the ground or base of the coil and a voltage peak at the top. Resonant rise is a function of the current value at the base of the resonator and the "Q" or quality factor of the resonator. This quality factor is determined by the inductance of the coil, its resonant frequency and the AC resistive losses within the coil. This is all that enters into the equation as long as the coil is free and floating in the "perfect vacuum" of interstellar space! To my knowledge, no coil in history has ever completely satisfied the equation for Q!

In the real world, Q is most affected by the coil form that the wire is wound upon, specifically its composition and thickness. There is another "evil" with which Tesla did battle constantly, and never so boldly as when at Colorado Springs, that is known as inter-turn capacitance. In addition to self inductance, a coil of wire also has internal or distributed capacitance created by the proximity of the adjacent turns to one another. Each turn is like a small capacitor plate which interacts capacitively with each turn adjacent to itself. Both the form factor and the internal self capacitance work to reduce the resonator Q. Finally, near effects by things such as the ground, metal objects, etc., all conspire to make the real world Q an almost impossible value to calculate.

Why all the fuss about Q? This is what Tesla terms the "magnification factor" and is directly related to the efficiency of all Tesla coil or similar resonant systems. And, this is what makes a magnifying transmitter into the ultimate Tesla coil.

   
Group: Guest


good answer EMdevices,

I think the quote was referring to hard to predict Q shift due to proximity to stray capacitance.  i.e. objects in the near field
   
Group: Guest
Hey guys!

I hook up a little different.  From output of neon trans, 1 wire go thru the diode, and the positive of diode go to L1.  You got a lot pulsation like that.  If you hook up the ground to the negative of diode then you got more power.  For those with capacitors on L1, and L2, I think the results are greatly.

I use the cable tv wire, the cable core is L1, the mess wire and aluminum aroung the core is L2.

Let me know you results guys.

   
Group: Guest
@ tranbinhtran

I use the cable tv wire, the cable core is L1, the mess wire and aluminum aroung the core is L2.

===================================================

That is VERY clever.  I haven't had any success with Don's device.  Using his coils, sparkgap, etc, I can only charge the big caps to about 300V.  BUT, that drops to ZERO immediately when I place a load on it.

Have you had success placing a load on your output cap using your method?

Thanks.

.
   
Group: Guest
Alright fat bird!

the mess wire around the the copper core to the ground.  You will get alot of spark.  I got alot stronger spark, several time or more from original neon transformer.  The area around the L1 to ground is matter.
   
Group: Guest
Looking this my attachment file... :),and comments please!
   

Group: Administrator
Hero Member
*****

Posts: 3960


Buy me some coffee
Welcome x_name

So the bottom diagram is how don has it setup on the board and the top diagram is how you are running it / building it?

Have you powered up yet.

Peter
   

Group: Experimentalist
Hero Member
*****

Posts: 568
Hi X,
  Welcome to OUR forum,  you asked so I looked at your schematic, if you are going to build the top schematic I think you are going to have problems with the bridge set up you put in.  The problem is the center tap connection on the transformer, if you look at it you will see you have a diode shorting out one half of the transformer every other half cycle.  If you remove the center tap connection then it will work.

Room


---------------------------
"Whatever our resources of primary energy may be in the future, we must, to be rational, obtain it without consumption of any material"  Nicola Tesla

"When bad men combine, the good must associate; else they will fall one by one, an unpitied sacrifice in a contemptible struggle."  Edmund Burke
   
Pages: 1 2 3 4 [5] 6 7
« previous next »


 

Home Help Search Login Register
Theme © PopularFX | Based on PFX Ideas! | Scripts from iScript4u 2024-11-26, 11:54:39