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Re: [TenTec] Centurion and AM

To: Bob McGraw - K4TAX <RMcGraw@Blomand.net>
Subject: Re: [TenTec] Centurion and AM
From: George Fritkin via TenTec <tentec@contesting.com>
Reply-to: George Fritkin <georgefritkin@yahoo.com>, Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Fri, 1 Aug 2014 18:02:55 -0700
List-post: <tentec@contesting.com">mailto:tentec@contesting.com>
I am sorry, for some reason I was thinking Centaur!!!!

The Centurion, I got it right this time, does it in a breeze.  

Looks like hot weather got me too.

George, W6GF

Sent from my iPad

> On Aug 1, 2014, at 5:59 PM, "Bob McGraw - K4TAX" <RMcGraw@Blomand.net> wrote:
> 
> The Centurion runs a pair of 3-500's {not 811's} and is rated at 1200 watts 
> PEP output.  So 200 to 250 watts of carrier modulated 100% is 800 to 1000 
> watts PEP.  Nothing wrong with this as I am one that did exactly that with no 
> issues.  There is a duty cycle rating that needs to be followed but 
> everything else works.
> 
> 73
> Bob, K4TAX
> 
> 
> 
> 
> 
> 
> ----- Original Message ----- From: "george fritkin via TenTec" 
> <tentec@contesting.com>
> To: "Discussion of Ten-Tec Equipment" <tentec@contesting.com>
> Sent: Friday, August 01, 2014 7:28 PM
> Subject: Re: [TenTec] Centurion and AM
> 
> 
> 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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