[Elecraft] VCO Alignment

[Jim Brassell]

Hello.

I appreciate the suggestions related to the subject.  What I have found as an anomoly is that pin 7 of U4 is at 4.94vdc, as is pin 1 of U5.  Both of these pins are clocking (CLK) I/O pins for U4 and U5.  A steady 4.94vdc is abnormal.  I also looked more carefully at T5.  The four green wire turns are situated such that there are four red wire turns on the 2-4 side and seven red wire turns on the 1-3 side.  The green and red wires are in the correct holes.  I can find no problems with the thermister nor can I find any soldering problems.  Any suggestions at this point would be appreciated.  The alignment steps up to VCO alignment and the step subsequent all check out perfectly.  Thanks.

73,

Jim,K4ZMV