[Drakelist] T-4XB won't do CW

[Roger Smith]

I have matching R-4B and T-4XB. Both were fully functional until I moved 
them to a new location in the shack. Now I can't get CW to work.  I have 
checked all the cable connections and the straight key I am using.  The 
cables are correct and the key works in another radio.  I rechecked the 
vox and delay settings and they are in the correct positions.  Tuning 
and SSB work with full power output. What is the next step I should take 
to troubleshoot this problem? Can this be caused by a bad tube? I 
haven't re-grounded the twins since the move.  Could that be a problem?

Thanks for the help,
Roger
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