Re: Mini Tesla

• To: tesla-at-pupman-dot-com
• Subject: Re: Mini Tesla
• From: wwl-at-netcomuk.co.uk (Mike Harrison) (by way of Terry Fritz <twf-at-verinet-dot-com>)
• Date: Fri, 01 Jan 1999 23:38:12 -0700
• Approved: twf-at-verinet-dot-com

On Thu, 31 Dec 1998 18:35:52 -0700, you wrote:

>Original Poster: NickandSim-at-aol-dot-com 
>
>To All,
>          I have built a little 6in by 1.5in tesla with a flat spiral
primary.
>I have calculated the windings etc. with tc-cad and they all match (resonant
>freq. 1.457Mhz).  It has a 4in by 1in toroid and runs off a 3kv transformer
>with a 0.1 uf cap and a 4mm spark gap.  I would appreciate any advice on
small
>teslas as the performence is not quite up to scratch.
>
>                                             Nick Field 
>
>
One problem is that when the secondary tuning capacitance is very
small, stray capacitance from surrounding objects etc. will have a
much larger effect, so tuning will tend to drift a lot. 
High operating frequencies will also suffer more from dielectric
losses (and annoy AM radio listeners!)

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