[hpsdr] Munin low output on 6m

[Al]

My Munin has me puzzled..

 From 160 thru 10 I can easily get 100+ watts output at reasonable 
effecincy.  On 6m it another story..  I can get no more than 55 watts 
out and it appears that its between the driver and final where I have 
the problem. At 6m, increasing the Munin input drive level above +10dbm 
(45 watts output) results in only a slight increase increase in final 
source current and power output. (The driver source current does 
increase as expected.)

Any ideas ?

AL, K0VM