Re: o-scope tuning of tesla coil?

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Antonio Carlos M. de Queiroz" <acmdq@xxxxxxxxxx>

Tesla list wrote:
>
> Original poster: "Black Moon" <black_moons@xxxxxxxxxxx>
>
> Seems to me the webserver is down.. Anyone have these pictures they could
> send me off list? or an alternate url?

The site is back.

> >The most effective method, I think, is to connect in series with
> >the primary circuit (across the spark gap, with the power supply
> >disconnected) a low-frequency square wave generator, with low output
> >impedance. Each transition of the square wave will produce a waveform
> >similar to what will appear in actual operation. Look at the voltage
> >across the primary inductor, and when the tuning is correct you
> >will see complete beats:
> >
> >http://www.coe.ufrj.br/~acmq/tesla/tefpreg1.jpg
> >
> >This waveform was obtained with this setup:
> >
> >http://www.coe.ufrj.br/~acmq/tesla/tuner.gif
> >
> >You can use a signal generator (square wave) too, but you need a very
> >low
> >output impedance. A 1 Ohm resistor connected across the output of a 50
> >Ohms generator is usually enough.

Antonio Carlos M. de Queiroz