Re: Help with my rotary gap (and other tuning problems).....

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Sean Taylor" <sstaylor@xxxxxxxx>

Adam,

Using a voltmeter, check for the 5 V resonant rise that John talks about
on his page.  If you're not getting this rise (and the voltage only
continuously drops) it may not be large enough and not give you the extent
of phase shift that you should have.

Sean Taylor
Urbana, IL

On Tue, 19 Jul 2005 18:57:00 -0500, Tesla list <tesla@xxxxxxxxxx> wrote:

> Original poster: "Adam R." <arabraxas@xxxxxxxxxxx>
>
> I fixed the fuse blowing problem with a 4uF AC cap....however, I am
> noticing that if I disconnect the capacitor from the circuit, adjusting
> the variac does the same for the phase adjustment, ie, the cap does not
> seem to be doing anything.
>
> I trust that the 4uF is correct, so my assertion is that maybe the LC
> circuit formed is not doing what it is supposed to? I did check the
> variac wiring by taking it apart somewhat--it is correct (when I start
> up the setup, it is on the lowest L, as I turn the knob, L increases
> until eventually the motor won't spin anymore.
>
> Is the cap infact doing anything or could something ELSE be wrong?
>
> Thanks.