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[Amps] choke resonances

To: <amps@contesting.com>
Subject: [Amps] choke resonances
From: alex@mail.sandlabs.com (Alex)
Date: Sat, 29 Jun 2002 15:27:43 -0400
Good choice :)
Alex




> -----Original Message-----
> From: amps-admin@contesting.com [mailto:amps-admin@contesting.com]On
> Behalf Of Phil Clements
> Sent: Saturday, June 29, 2002 1:04 PM
> To: carl seyersdahl; 'Amps'
> Subject: Re: [Amps] choke resonances
> 
> 
> Subject: [Amps] choke resonances
> 
> 
> > How far away from a given band should a plate choke resonance be to not
> > cause a problem?? I have a resonance right on 18 mhz. in an amp, and am
> > concerned that someone might want to use it on 18 mhz. and so I 
> want to move
> > it, but should I move it up or down , and if so how much??? Any 
> thoughts on
> > this will be appreciated!!
> >  carl / kz5ca
> 
> The RF Parts choke (RFC-3) used in many Ameritron and other
> brand amps is the one I have been using, Carl. It has plenty of
> L for 160 meter coverage. The first resonance is parked around
> 11.5-12 mhz, and the second is well above 10 meters. It is
> advertised by RF Parts as 225uh, 1.5 amps, 1 inch ceramic form,
> 5 5/8 high. This choke has been a true drop-in-and-play component
> for me with several projects. I always keep a few in the parts bin
> for future use.
> 
> (((73)))
> Phil, K5PC
> 
> 
> 
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