Re: It works! Solid state driver

• To: "'Tesla List'" <tesla-at-poodle.pupman-dot-com>
• Subject: Re: It works! Solid state driver
• From: Tesla List <tesla-at-stic-dot-net>
• Date: Mon, 8 Dec 1997 20:54:44 -0600
• Approved: tesla-at-stic-dot-net

From: 	Malcolm Watts[SMTP:MALCOLM-at-directorate.wnp.ac.nz]
Sent: 	Monday, December 08, 1997 3:06 PM
To: 	Tesla List
Subject: 	Re: It works! Solid state driver

Minor correction:

> From:   Scott Stephens[SMTP:stephens-at-enteract-dot-com]
> Sent:   Sunday, December 07, 1997 6:13 PM
> To:     Tesla List
> Subject:    Re: It works! Solid state driver
<snip> 

> >  My secondary is wound directly over the primary to achieve maximum
> >coupling. There is a layer of high voltage tape between them rated at
> >69Kv.
> 
> Maximum coupling is a great feature of solid state design with end feeding.
> But if you load the secondary (with a white-hot discharge, for instance) the
> decreasing load impedance of the secondary will now appear (to the turns
> ratio ^2) across your FET's :(

Actually, the base impedance *rises* if the other end of the 
secondary is loaded. Check a reference on 1/4 wave transformers. 

Malcolm

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