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Hello again, and congratulations for keeping the smoke where it belongs (that is
inside the components)!
The bias on the output tubes is determined by R33, R34 and R18 (as well as
the two cathode resistors of course). Once you have checked those five resistors
and made sure they are within tolerance (+/- 10 % I assume), the tubes should
work properly. You may also want to check the plate voltage at pin 5. Your
present results (cathode voltage higher than expected) mean that the cathode
current is a bit high. Also make sure your cathode bypass capacitors are correctly
wired (+ to cathode, - to ground). Good luck!
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