[Amps] Lowest distortion required - Was: Designing the CleanestLinear with RF Negative Feedback

[GGLL]

	Hello Peter, well, I was pointing at many mentioned designs, which had 8122,
4cx350's, etc., working class A (and I agree I'm stating those as "high
power", although maybe for the rest of this nice list they fall into a sort of
qrp cathegory, hi). It was mentioned also a japanese gear which outputs 75
watts, also class A. Mainly to these rigs was aimed my question.

Best regards
Guillermo - LU8EYW.

Peter Voelpel escribió:
> Hi  Guillermo,
> 
> There is no high power class A stage mentioned.
> Just a linear with low IMD making use of negative rf feedback
> to reach that goal.
> IMD at -55db  is possible with a high gain AB1 linear.
> 
> 73
> Peter
> 
> 
> -----Original Message-----
> From: amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
> Behalf Of GGLL
> Sent: Donnerstag, 15. Dezember 2005 16:58
> To: Amplificadores Lineales
> Subject: [Amps] Lowest distortion required - Was: Designing the
> CleanestLinear with RF Negative Feedback
> 
> 	Which is the main purpose to design an RF class A stage at high
> power levels?, if with AB1 one can accomplish the required (and even more)
> the unwanted signals attenuation with better efficiency. Any special mode of
> transmission?, or in those situations where there are several transmitters
> operating at the same location?. Some audio fanatic like mania?.
> 
> 
>