[Amps] Re: 4CX250B power output

[Jan Erik Holm]

Indeed, agree 100%. However just listen on the bands, there
are lots and lots of very very wide signals out there and
I frankly don´t know how to solve the problem.
Talking about 4CX250´s. There are this well known German
contester that used to operate single band 20m, he uses
4 x 4CX250B´s and he is very very wide. I have talked to
him a number of times and also once did visit him and we
did discuss the matter, 5 years has gone by and he hasn´t
done a thing, he still comes on with that thing and tears
up 30 - 40 kHz of the band, what to do? However he´s not alone.

73 Jim SM2EKM
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John Nelson wrote:

> As with hi-fi audio amplifiers, it is entirely meaningless to discuss the
> power output of an RF linear amplifier without also stating the distortion
> level associated with that power. I thought we'd established this a long
> time ago. With 2kV on the plate, a single 4CX250B could certainly be made to
> generate a good 450W of HF output. However, the IMD would be frightful and
> your neighbours less than impressed with your handiwork. As G3SEK put it
> some years ago, "how much of OUR band is taken up by YOUR signal"?
> 
> 73 John
> GW4FRX