[Elecraft] KAT2 Power problem continued

[Tom Campie]

Still no solution for my power problem.  Some correspondence with Gary at
Elecraft has me back where I started.  I removed R6 and saw 0V at the output
of U4 but 2.5V on the input of U4 coming from U1 (pin 3 on U4).  According
to the testing in the manual this should be 3-4 volts with a requested power
of 5 watts.  I replaced R6 and now saw the 2.5V on the output of U4.  This
is still low obviously.  I reflow'd all the solder joints in the SWR bridge
as it suggests and this has not helped.  I'm not sure where to look next.

Tom W0EA