[Elecraft] 100 Watts or 500 Watts

ab2tc ab2tc at arrl.net
Mon Dec 20 15:44:36 EST 2010


Hi,

Not so sure. That would require the 12W (pre)amp in the K3 to run full tilt.
I seem to remember from the QST review of the K3/10 that it wasn't super
clean at full power either. It's well known that both these amps get
significantly cleaner when run at 50% or less which is what they would do
driving the KPA500 to full power.

AB2TC - Knut


Rick Dettinger-3 wrote:
> 
> But going directly from the K3/10 to the KPA500 might be a good way  
> for those unhappy with the SSB transmit quality of the KPA3 to get a  
> very clean signal since the KPA500 uses 70 volt devices for the final  
> amplifiers.  Plus a 3 db. gain over the KPA3.  At a cost, of course.
> 
> 73,
> Rick Dettinger   K7MW
> 
> <snip>
> 

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