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Re: [Amps] Plate choke resonance and safe operation

To: 'OZ1AXG Flam' <oz1axg.nospam@dxmail.dk>, amps@contesting.com
Subject: Re: [Amps] Plate choke resonance and safe operation
From: Doug Renwick <ve5ra@sasktel.net>
Date: Sun, 07 Dec 2008 15:11:17 -0600
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Just curious as to why you did not choose to use an Ameritron plate
choke?  I would think that the Ameritron choke would be safe on the ham
bands, and they weren't that expensive at Dayton 2008.

Doug

Life is not a spectator sport. 

-----Original Message-----
From: amps-bounces@contesting.com [mailto:amps-bounces@contesting.com]
On Behalf Of OZ1AXG Flam
Sent: December 6, 2008 3:20 PM
To: amps@contesting.com
Subject: [Amps] Plate choke resonance and safe operation

Hi

Just replaced the plate choke in my ameritron amplifier.

I checked the choke resonance, with a dip meter, and found resonant at:
fo = 27.711 MHz
fo = 15.265 MHz
fo = 10.839 MHz

Qustion is: how close is it safe to operate the ampfiler to the above 
frequences ?

Plate Choke is RFC-3 from RFParts:
http://www.rfparts.com/choke.html

--
vy 73 de OZ1AXG Flam



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