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Re: [TenTec] Centurion and AM

To: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Subject: Re: [TenTec] Centurion and AM
From: Kim Elmore <cw_de_n5op@sbcglobal.net>
Reply-to: Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Fri, 01 Aug 2014 19:34:14 -0500
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
How about this: Tune the amp for its maximum clean PEP output at whatever drive level is needed. Switch to AM and adjust the carrier level to 1/4 of that output. Then operate happily.

Kim N5OP


On 8/1/2014 7:28 PM, george fritkin via TenTec wrote:
200 to 250 watts AM results in 800 to 1000 watts PEP at 100% modulation.  Three 
811 tubes can not handle that power.  However if you are using low level AM 
from your xcvr you probably won't get 100% modulation so it might not be a 
problem.  If it were me, I would drop the power to 150 watts to be safe
Just my opinion George, W6GF


On Friday, August 1, 2014 4:57 PM, Robert <rmcgraw@blomand.net> wrote:

Yes. Run about 200 to 250 watts of carrier BUT tune it for max output with 100 
watts of drive.   Then switch to AM mode and adjust drive as necessary. Do not 
change amp tuning after switching to AM mode.



73
BOB, K4TAX


Sent from my iPhone

On Aug 1, 2014, at 5:40 PM, Timothy Johnston <timothy.f.johnston@gmail.com> 
wrote:

Can the Centurion (422b) be used with AM mode? The manual does not mention
it.

73 de Tj, K4TFJ ...
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--

Kim Elmore, Ph.D. (Adj. Assoc. Prof., OU School of Meteorology, CCM, PP SEL/MEL/Glider, N5OP, 2nd Class Radiotelegraph, GROL)

/"In theory there is no difference between theory and practice. But, in practice, there is." //-- Attributed to many people; it's so true that it doesn't matter who said it./

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