RE: [TCML] Primary angles

["Lau, Gary" <Gary.Lau@xxxxxx>]

I'm not sure there's any reason to use any primary geometry other than a flat one, regardless of secondary size or power.  It may seem that there's some efficiency to using a conical primary - that it somehow "focuses" or directs the primary energy towards the secondary more effectively than a flat primary does.  But it doesn't.  All that matters is achieving the correct (not too high, and not too low) pri-sec coupling, and this is equally attainable with a primary of any shape, simply by adjusting the vertical relationship between the two coils.  One just needs to choose a mechanical design that will allow for this adjustment, at the onset of the project.

Using a steep conical primary may result in having the top of the primary within striking distance of the topload, and a helical (cylindrical) primary may result in overcoupling.

Regards, Gary Lau
MA, USA

> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On
> Behalf Of Simon Dodd
> Sent: Friday, November 28, 2008 11:24 AM
> To: Tesla Coil Mailing List
> Subject: [TCML] Primary angles
>
> Hi guys,
>
> Could I get some clarification on the pros and cons or differences
> between having a flatter primary and having more of a vertical one. I
> am really struggling with the calculations to find out what would be
> best for my coil. I can send some more specs if needed.
>
> Thanks in advance for all your help
>
> Simon
>
> --
> Simon Dodd
> Director/ Technical Manager
> Yes Boss Music
> 46a Theydon Road
> London
> E5 9NA
> UK
> simon@xxxxxxxxxxxxxxxx
> 07828467411
> www.yesbossmusic.com

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