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Re: [Amps] Mica cap substitute \ alternative

To: R L Measures <r@somis.org>
Subject: Re: [Amps] Mica cap substitute \ alternative
From: Peter Chadwick <g3rzp@g3rzp.wanadoo.co.uk>
Reply-to: g3rzp@g3rzp.wanadoo.co.uk
Date: Wed, 12 Jul 2006 11:13:30 +0200 (CEST)
List-post: <mailto:amps@contesting.com>
Rich said:
>Unlike barium-titanate dielectric (ceramic)  doorknob capacitors,  
whose current carrying ability increases from 5MHz to 30MHz, mica  
dielectric caps' current carrying ability decreases above 5MHz.<
Yes, but WHY? What's the mechanism that allows mica to be a perfectly good 
insulator in other application, way way up in frequency?
73
Peter G3RZP
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