I've had this 5F2a that I've been experimenting with, (different tone caps, adding a voltage divider and high pass caps between V1a and b) and when measuring voltages, I'm seeing my V1a plate voltage almost 30 volts higher than my V1b voltage. Which is really odd because I didn't change anything in that part of the circuit. Still 1 feed coming off the B+, and splitting between the 2, 100k plate load resistors. I checked the resistors and they're both still 100k-ish, but just for testing, i swapped the V1a resistor for another one. Same result. 30volts or so higher than V1b. I even removed the voltage divider/cap just to be sure. (even tho that's after V1a's plate, and feeding V1b's grid) - Same result. I can't imagine how it could be the tube itself, but there isn't anything else to check... Is there????