Re: Spectrum and Harmonics

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

Original poster: "Jason Johnson by way of Terry Fritz <twftesla-at-uswest-dot-net>" <hvjjohnson13-at-hotmail-dot-com>

I don't think that you need to worry about burning up the coil, at least on
a disruptive discharge TC. I've pushed 1500 VA through a small (1.875" x
9.75") coil wound with 33 guage magnet wire, with an MOT. The coil was
terribly inefficient only producing 14" long sparks (also used too small of
a toroid, single polyester cap, and single static gap with very little
airflow), but they were white hot and louder than heck. The coil didn't even
get slightly warm, unlike the capacitor and the spark gap....

Jason Johnson

----- Original Message -----
From: Tesla list <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Wednesday, December 13, 2000 6:09 PM
Subject: Spectrum and Harmonics


> Original poster: "Nathan Morris by way of Terry Fritz
<twftesla-at-uswest-dot-net>" <themfam-at-home-dot-com>
>
> Hello all,
> I am dropping down to # 32 and increasing my secondary height to 17.25
inches
> for a total of 1627 turns.  What is the recommended resonant frequency
range
> for primary tuning?  With .06uf of primary capacitance, It looks like my
> secondary will be running at the third harmonic of the primary frequency.
> Which harmonics are best for large streamers?  Which harmonic do most TC's
run
> at? Is #32 ok for a 7.5kv 20 ma NST driven TC?  Will I be able to use this
> secondary on higher powered TC's? I don't want to build a secondary that I
> can't grow with.
> TIA
> --Green Horn
>
>
>
>