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Re: Tube Type Tesla Coils




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> To:            Tesla List <tesla-at-pupman-dot-com>
> From:          "John H. Couture" <couturejh-at-worldnet.att-dot-net>
> Subject:       Re: Tube Type Tesla Coils
> Date:          Mon, 10 Mar 1997 20:38:04 +0000

<major boilerplate houskeeping snipola>
> >
> >> To:            Tesla List <tesla-at-pupman-dot-com>
> >> From:          "John H. Couture" <couturejh-at-worldnet.att-dot-net>
> >> Subject:       Tube Type Tesla Coils
> >> Date:          Thu, 6 Mar 1997 06:30:50 +0000
> >
> >> 
> >> To All -
> >> 
> >>
> >> My question is " Should tube TC's be on a separate Tesla List of it's own?".
> >> Coilers who are interested in tube types will then not have to scan thru
> >> classical coil (or magnifier) postings to find the information they need.
> >> 
> >> John C. 
> >
> >John, All,
> >
> >The points you make that a Vac tube TC is not *technically* a true 
> >Tesla coil are well taken and I agree.  Note also that  Magnifiers are 
> >as different from a classical two coil T.C. as a vac tube T.C. is.  
> >However by a circumstance of history, a Magnifier IS BY VIRTUE OF ITS 
> >INVENTOR a real Tesla coil. : )
> >
> >For the convenience of keeping  RF generated arcs and sparks all in 
> >one place, I vote on keeping chatter about vac tube T.C.'s on this 
> >list.
> >
> >IMHO,
> >rwstephens 
> >
> -----------------------------------------------------


John, you wrote:
 
> I believe Magnifiers are real Tesla coils.

Gee, isn't that exactly what I just finished saying in capitol letters?!

> They work by charging a capacitor
> to create a dampened sine wave in the transformation of a low voltage to an
> ultra high voltage. This is the same operation as a classical coil. This is
> a unique electrical phenomena and has several advantages over all other
> electrical apparatus. It is the only apparatus that can change the voltage
> at theoretically unlimited elctrical power. Tesla needed this special
> requirement for his World Electrical System. This is why Tesla researched
> both classical coils and magnifiers.
> 
> Note that electrical resonance is only part of the Tesla coil operation.
> Resonance is also part of other electrical devices and not something special
> to Tesla coils. One of the advantages of the dampened sine wave is that it
> creates a much higher voltage amplitude for a fixed amount of energy
> compared to the continuous sine wave. Tesla needed the highest voltages he
> could develop. 
> 
> The Tesla coil invention and dampened sine waves gave Tesla the maximum
> voltages and energy transfer of any electrical apparatus in his day. This is
> also true today and for this reason the Tesla coil is still a very unique
> apparatus.

I agree with what you said so far.

> A pulse wave can create a greater amplitude but at a lower power
> level so pulse transformers were not good enough for Tesla's system.

Huh?  By compressing a given amount of energy in the time domain we can 
achieve peak pressures that can do work not obtainable any other way.  
More spectacular work is done by rearranging the way modest continuous 
amounts of energy are stored and re-released in compressed packages delivered
in the temporal regieme.  You and I understand 
this principle well. I think you just said this but then you seguay 
into talking about 'pulse transformers not being good enough for 
Tesla's system'.   What are you talking about? Tesla's coil is very definitely
a *pulse transformer*.  It just happens to be narrowband, i.e. 
resonant, and does not support jobs in the steelworker's unions.  A Tesla coil
*transforms* a low voltage pulse into a high voltage pulse, no?

> >
> I would agree that keeping all RF generated arcs and sparks in one place
> would be an advantage provided the number of postings did not get out of
> control.

Good.

> It appears that the number of postings are becoming too great for
> efficient communication of the various arcs and sparks devices.
>John C.

If the volume of mail you read is too great to handle, send some of 
it to the trash or just don't read it.  If it is truly overwhelming, 
drop off the list that is the cause of the overload.  I've had to do 
this with a couple of other lists, just way too much noise.  If vacuum tube
T.C.'s were to be placed on a separate list, and you were a subscriber to that
other list, the volume of mail you would have to deal with on Tesla coils, 
er, excuse me, 'arc and spark devices', would be the same, 
but you would have to go to more trouble to deal with it all.  There are 
advantages in one-stop shopping!

Whatever your point is, I don't follow your logic, so I'm afraid it completely 
escapes me John. 

rwstephens 

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