[Elecraft] Product Idea - 25 Watt PA for the K3

[Edward R Cole]

I originally purchased a K3/10 which limits output at 12w (how 
linear?).  Then a year ago I bought the KXPA100 which drives to 100w 
with about 5w which is 42% of max output and should be much more 
linear out of the K3.  I haven't determined the drive required for 
25w output from the KXPA100 but is probably down near 2-3w.  I run 
11w on 6m to drive a Harris 1kW amp and run the K3 at 1.3w and use 
the 3-dB attn input to the KXPA100 to get down to 11w.

I'm not running SSB so linearity is less important though JT65a still 
wants a linear amp (6m 1kW is for eme which is digital).

At some point I want to run 6m-SSB and thinking to run with 500w 
measured carrier output; that would realize 1000w PEP and stay under 
the 1600w limit of the Harris.  I do not run the Harris on SSB 
currently due to the five fans making too much audio noise in the 
shack for an open mic (I plan to remotely install the amp at the 
tower base next summer).

73, Ed - KL7UW
   http://www.kl7uw.com
Dubus-NA Business mail:
   dubususa at gmail.com