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Re: smallest Tesl Coil



Subject:  Re: smallest Tesl Coil
  Date:   Mon, 05 May 1997 08:39:43 -0500
  From:   David Huffman <huffman-at-FNAL.GOV>
    To:   Tesla List <tesla-at-pupman-dot-com>


Hi Ralph, All,
I built a small coil, they are cute, but not very impressive. The coil
was
about an inch in dia and 4" tall. I used two 650pF door knob caps and a
brass door knob for the top load. The output discharge was about 2" of
flame/plasma. The freq was around 1.5MHz. I had a 15Kv30Ma neon for
power.
They are harder to tune and have greater parasitic losses.
My two cents worth
Dave Huffman

----------
> From: Tesla List <tesla-at-pupman-dot-com>
> To: tesla-at-poodle.pupman-dot-com
> Subject: smallest Tesl Coil
> Date: Friday, May 02, 1997 11:26 PM
> 
> Subject:   smallest Tesl Coil
>   Date:   Thu, 01 May 1997 10:26:42 +1000
>   From:   Ralph Down <rjdown-at-fan-dot-net.au>
>   To:     USA-TESLA-at-list.usa-dot-net
>     CC:   tesla-at-pupman-dot-com
> 
> 
> I was talking to a tech at the local neon sign shop about Tesla coils
> and he
> showed me a small hand held device which looked like one of those Mag
> lite
> torches. It had a label on the side which read "Tesla gas leak
> detector".
> It plugged into AC mains and made a 50 Hz buzz and a violet corona
> discharge
> appeared at the business end which was a sharp spike.  They use this for
> detecting gas leaks in neon tubes.
> I thought a good project would be to make the smallest Tesla coil rather
> than what everyone else seems to be doing (Making the largest Tesla
> coil).
> Has anyone made a small coil (hand held - battery operated) which gives
> impressive output?
> What would be a good selection of components eg capacitor size, winding
> details etc
> I thought maybe a NiCad power source driving an inverter to supply HV
> and
> then use standard spark gap and small primary coil would be a starting
> point.
> Any thoughts would be welcome.
> Thanks
> Ralph Down
> 
> Today is the tomorrow you worried about yesterday....... and everything
> is O.K.
>