[Amps] IM distortion and such

[Steve Thompson]

Tom W8JI wrote:
>>In any case, this AL-80B IMD horse has been beaten to 
>>death.
>>I wish someone would do some two-tone tests using the 
>>lightly
>>loaded and heavily loaded tuning procedures and then post 
>>the
>>results (specA photos) on the web.
> 
> 
> I'm not sure how other companies do it, but looking at 
> various operating conditions was standard practice for Heath 
> and early Ameritron.
Is it worth mentioning that the 'tune then back off peak Ia' achieves 
the same (or very similar) end result as tuning for maximum Po, then 
increasing the loading a little bit which many folks practice without 
thinking about it. The former does it in a more controlled and 
predictable way.

Steve