Re: Magnifier web page

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Jolyon Vater Cox by way of Terry Fritz <teslalist-at-qwest-dot-net>" <jolyon-at-vatercox.freeserve.co.uk>

Antonio,
You say that 50% RMS to peak voltage ratio can be exceeded by an induction
coil
and that 6th order versions are possible -
does this mean that it is possible to use an induction coil as a driver in a
magnifier setup?

What kind of induction coil would be suitable
you mentioned the Rhumkorff design -does this mean the driver would have to
be just like one of those "antique" laboratory-type coils with  double ended
secondaries
or could something more modern like an ignition coil be used, and would the
iron core have to be removed or not?


Is possible that networks related to induction coils -but without magnetic
coupling- could be devised in a similar way to the multiple-resonant
networks which are  related to Tesla coils?

Would it be possible to provide some of the calculations which are involved
in the design of induction coils as these are different to those for Tesla
coils.

Also,  is it possible that  the voltage from an induction-driven magnifier
could exceed that of a normal Tesla coil?

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Tuesday, May 13, 2003 12:41 AM
Subject: Magnifier web page


 > Original poster: "Antonio Carlos M. de Queiroz by way of Terry Fritz
<teslalist-at-qwest-dot-net>" <acmq-at-compuland-dot-com.br>
 >
 > Hi:
 >
 > I have set up a web page showing my 6th-order magnifier:
 > http://www.coe.ufrj.br/~acmq/tesla/mag345.html
 >
 > Mostly what I had already commented in the list. Some pictures
 > of the parts, some low-power waveforms, but no spark pictures yet.
 >
 > The problem about the low rms value of the magnifier output that
 > Terry observed, that can lead to smaller streamers even with the
 > voltage peaks being higher, is commented. If this is a real problem,
 > then there is another interesting problem to solve, that is how to
 > obtain the maximum possible rms output, with or without quenching.
 >
 > The conventional Tesla coil results always in the rms output
 > voltage (without quenching) being 50% of the peak voltage. The
 > magnifiers in modes k:k+1:k+2 always result in a bit less (~43%).
 > Interestingly, The 50% limit can be exceeded with an induction coil
 > circuit, with the initial energy in the primary inductor. 6th-order
 > versions are possible too. The maximum rms/peak ratio appears to be
 > 70.7%, when the output voltage tends to a pure sinusoid. But the
 > element values are then more suitable for the classical structure
 > of the Ruhmkorff induction coil, not for a Tesla coil.
 >
 > Antonio Carlos M. de Queiroz
 >
 >
 >