[codefox1]

Already stated that lack of proper bias on 6L6 will cause heavy load on power supply. The bias is set on pin 5 (control grid) and must be negative with respect to ground. Follow the volts! Triple check to see that power supply is wired correctly. Bias or negative circuits can be a little tricky and not so intuitive.

The driver transformer may or may not be bad.

I would also recommend you replace the small carbon resistors, as they are probably drifting up, and may do funny things under power that you can't test for.