[Heath] SB-200

[Kenneth G. Gordon]

On 17 May 2018 at 17:12, Mike wrote:

> Jerry...Just curious how reducing the 100% duty cycle by 33% or 
> reducing the drive to 15%-20% of rated level with additional 
> cooling will "Smoke it" even with a non CCS transformer?  
> 
> Mike AA7WU

Mike and Jerry:

I think the misunderstanding here lies in the fact that we were, at first, talking about using 
the SB-200 and other GG linear amps to amplify the controlled-carrier AM of such rigs as 
the DX-40. 

Since controlled-carrier AM is very "cyclic" in power needed/used, very much, sorta, like 
SSB, one can more safely use GG amps to amplify that.

Also, as I remember it, the FCC limits CARRIER power to 375 watts for full plate-modulated 
AM, since the PEP is supposed to be 4 X the carrier power, and we are limited to 1500 
watts PEP for any mode.

More later.

Ken W7EKB

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