Hi Alex,
That's a very interesting technique, and definitely one I can attempt.
Thanks!
Joshua Thomas
On Mon, Nov 1, 2021 at 8:42 PM b alex pettit jr <a_pettit_jr@xxxxxxxxx>
wrote:
> *WHAT YOU CAN TRY IS:*
>
> using a very low setting on the Variac and very small gap settings,
> Connect the Coil Tap wire to an insulated rod a foot or so long,
> energize the AC and touch the coil tap wire to various locations on the
> primary coil.
>
> *SOMEWHERE,* you should see some *Secondary Output *.. refining and
> stepping up the V is tedious this way,
> but Can Be Done.
>
> Alex
>
> On Monday, November 1, 2021, 07:07:01 PM EDT, Joshua Thomas <
> joshuafthomas@xxxxxxxxx> wrote:
>
>
> Hello Alex,
>
> Thank you for your reply.
>
> I have an oscilloscope but not a signal generator (the pitfalls of being
> on a tight budget!). If I can source a signal generator I will try your
> technique to find resonant frequency; thank you for that.
>
> I am somewhat surprised to read that the primary coil needs to be tuned
> with with-in 1/4". The other sources I have been reading who have had
> successful coils started out with a "guessed" turn to tap the primary coil
> and then advanced or retarded the tap point by an entire turn of the coil,
> which is far more than a 1/4". Others seemed to have generated sparks even
> with a sub-optimal tap point, using the tuning to get optimal length.
> Perhaps you could elaborate more on this?
>
> Thank you very much,
> Joshua Thomas
>
>
>
--
Joshua Thomas
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