[Elecraft] KPA1500 design

Alan Bloom n1al at sonic.net
Tue Feb 21 18:58:44 EST 2012


You could do it with four unmodified KPA500s and three hybrid combiners.

Alan N1AL

On Tue, 2012-02-21 at 15:52 -0800, Rick Bates wrote:
> I've never designed an amp so I'm knowingly ignorant here.  But I was
> wondering:
> 
>  
> 
> If one removed the power supply from a KPA500 and moved it to an external
> box (adding regulation and a 13.8 VDC, 30 amp capable supply while you're
> there) then;
> 
> Put FOUR of the (KPA500) PA modules together in the 'amp' box (two push, two
> pull, AB class) and matched them into one output;
> 
>  
> 
> Would it feasible to have legal limit (loafing) output with 100 watts of
> drive (limited on the input to meet the 15 db gain FCC spec)?
> 
>  
> 
> Or am I just being too ignorant?
> 
>  
> 
> Rick WA6NHC
> 
> ______



More information about the Elecraft mailing list