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Re: [Amps] IM distortion and such

To: Colin Lamb <>
Subject: Re: [Amps] IM distortion and such
From: R L Measures <>
Date: Fri, 30 Jun 2006 18:09:37 -0700
List-post: <>
On Jun 30, 2006, at 12:50 PM, Colin Lamb wrote:

> Rich asks:
> "Can an unloaded tank reach potentials higher than the breakdown
> voltage of its Tune C?"
> Yes.  We are not dealing with dc, but waves.  These waves do not  
> necessarily where you expect them or want them to.  The peaks will  
> vary depending upon the frequency and length of components.  It  
> might be easier to imagine standing waves on antennas.  The same  
> thing will apply in tank circuits.

So when one of these waves shows up. the breakdown potential of the  
air-variable cap doesn't even matter?
> So, having a plate tuning capacitor that breaks down at 5 kv will  
> not necessarily prevent arcing at a plate switch that is rated a 6 kv.
...  even though they both connect to the same point - the outgoing  
end of the DC blocker cap.
Amazing, Colin, simply amazing.

> Colin  K7FM

R L MEASURES, AG6K. 805-386-3734

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