[Amps] Combining SS Amps

[Paul Christensen]

Recently, I have given some thought to combining a pair of medium-power, 
solid-state amps with the capability of achieving the FCC maximum power 
limit of 1500 WPEP on HF.

Does anyone know a source of an output combiner specifically made for the HF 
spectrum at the 2KW operating level?  Also, does anyone have a good source 
of information relating to the construction of an input phasing network used 
to optimize efficiency and minimize reject load loss?  Tnx!

Paul, W9AC