My Brand New CTC-7!

[old_coot88]

Originally Posted by SwizzyMan

...I get 5.6 volts on pins 4 and 5 on the 6AW8A socket.

Are you saying there's 5.6V on both pins 4 and 5 with respect to ground?
If so, pull the tube. Now there should be zero volts on pin 5.
With the tube still removed, check continuity from pin 5 to ground. It should read zero resistance, solid continuity. If it's open, there's your problem.
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Or are you saying there's 5.6V between pins 4 and 5? If so, that's what you should be getting. This would indicate one of the lugs is open inside the socket.
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(For convenience I'm using your 5.6V measurement in lieu of the called-for 6V.)