[Elecraft] KAT2 Null Bridge Adjustment Problems

[Carl J. Denbow]

I've built the KAT2 and have become "stuck" at the Bull Bridge 
Adjustment stage (P. 16 Rev. D Manual).  No matter where I place the 
trim capacitor C55, I get "Hi" on the screen when I do a Tune in CALn 
mode.  Anyone have any ideas where I should look for the culprit here?  
Prior to this, the KAT2 checked out just fine in the preliminary tests 
on p. 13 of the manual.  I just need some direction as were to start 
looking for the possible problem.  The only thing that I can think of is 
a possible bad C55.

Thanks and 73,

Carl
N8VZ