I built a 5E3 today... What would cause B+ to spike when flipping the standby to "Play" mode? I'm not really sure where to start. All was good with Lightbulb limiter during initial startup. It plays. My bias is way way high though. I've never heard up the voltage going UP. Wall Voltage is 120. 355-0-355 Hammond 290BBX PT and puts out 380-0-380 in real life. Rectifier Pin 8 w/ a TAD 5Y3 in "Standby" position is 362 VDC; which seems a smidge lower than it should be. Pin 8 in "Play" position jumps up to 526 WITHOUT Tubes. With JJ 6V6GTs it's 420. Thanks in advance.