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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