[Ben]

I am only getting 0.152v ac on the output when engaged. I believe the transformer is oriented correctly and solder joints appear clean. I am getting 0.14v ac @ U2 pin 4 and U2 has power. I hear the relay click when taking out of bypass. I also tried cleaning the tube pins. Please advise, Thank you
+15.6 v
-15.56v
B+ 45v
tube heater 6.15v and glowing

[JPK]

Remove U4.
What values (DC and AC) do you get on TP1 to TP4 in the initial conditions here.

[Ben]

 0.05vac and 29.69vdc @ TP1
0.077vac and .258vdc @ TP4

[Ben]

I reheated all solder joints and rechecked for bridging or shorts, no change
Thanks,
Ben

[JPK]

Can you please also report the values on TP2 and TP3?

[Ben]

Sure can, 
TP2= 0.297 VAC and 0.057 VDC
TP3= 0.077 VAC and 0 VDC

Pot 1, R1 and R2 test ok as well
Thanks,
Ben

[JPK]

TP2=  0.057 VDC
Here is the issue. You should get around 30VDC.
You must check the solder joints on R7, on the tube socket, on the connector that links the tube PCB to the main PCB.
Check that the 48V gets to both sides of R7 (you can check without the tube inserted).

[Ben]

Apologies, my DMM lead must have had a bad connection testing TP2. I actually have 29.79vdc and 0.145vac @ TP2. TP3 is the same