Maximum Power using FR4 board ?

simonchettle
 

This is  a simple question what is the maximum power anyone would risk using a 1/4 length strip line on FR4 on 23cms ? 
 
Why because my metal working tools and skills are close zero and I am thinking of building a Wilkinson divider. 
 
I am thinking of combining two power amplifiers each of circa 100 W  O/P. 
 
 
Cheers
 
 
Simon
 
G8ATB
 

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