[TenTec] Centurion and AM

[Kim Elmore]

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 at 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 at 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./